diff --git a/BUILD.gn b/BUILD.gn
index df3662ae..90f10d88 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -79,6 +79,7 @@ group("appspawn_all") {
       "${appspawn_path}/modules/module_engine:libappspawn_stub_empty",
     ]
     deps += [ "service/hnp:hnp" ]
+    deps += [ "service/devicedebug:devicedebug" ]
     if (appspawn_support_cj) {  # for support cj appspawn
       deps += [
         ":cjappspawn.rc",
diff --git a/interfaces/innerkits/include/appspawn.h b/interfaces/innerkits/include/appspawn.h
index 8f67c151..f3edf5f9 100644
--- a/interfaces/innerkits/include/appspawn.h
+++ b/interfaces/innerkits/include/appspawn.h
@@ -106,6 +106,7 @@ typedef enum {
     MSG_BEGET_SPAWNTIME,
     MSG_UPDATE_MOUNT_POINTS,
     MSG_RESTART_SPAWNER,
+    MSG_DEVICE_DEBUG,
     MAX_TYPE_INVALID
 } AppSpawnMsgType;
 
diff --git a/service/devicedebug/BUILD.gn b/service/devicedebug/BUILD.gn
new file mode 100644
index 00000000..3dcde0cc
--- /dev/null
+++ b/service/devicedebug/BUILD.gn
@@ -0,0 +1,40 @@
+# Copyright (c) 2024 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import("//base/startup/appspawn/appspawn.gni")
+import("//build/ohos.gni")
+
+if (!defined(ohos_lite)) {
+  ohos_executable("devicedebug") {
+    include_dirs = [
+      "base",
+      "kill/include",
+    ]
+    sources = [
+      "${appspawn_path}/service/devicedebug/devicedebug_main.c",
+      "${appspawn_path}/service/devicedebug/kill/src/devicedebug_kill.c",
+    ]
+    configs = []
+    cflags = []
+    deps = [
+      "${appspawn_path}/interfaces/innerkits/client:appspawn_client",
+      "${appspawn_path}/util:libappspawn_util",
+    ]
+    external_deps = [
+      "cJSON:cjson",
+      "hilog:libhilog",
+    ]
+    install_enable = true
+    subsystem_name = "${subsystem_name}"
+    part_name = "${part_name}"
+  }
+}
diff --git a/service/devicedebug/base/devicedebug_base.h b/service/devicedebug/base/devicedebug_base.h
new file mode 100644
index 00000000..7ef2fba5
--- /dev/null
+++ b/service/devicedebug/base/devicedebug_base.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DEVICEDEBUG_BASE_H
+#define DEVICEDEBUG_BASE_H
+
+#include "hilog/log.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#undef LOG_TAG
+#define LOG_TAG "APPSPAWN_DEVICEDEBUG"
+#undef LOG_DOMAIN
+#define LOG_DOMAIN (0xD002C00 + 0x11)
+
+#ifndef APPSPAWN_TEST
+#define APPSPAWN_STATIC static
+#else
+#define APPSPAWN_STATIC
+#endif
+
+/* 数字索引 */
+enum {
+    DEVICEDEBUG_NUM_0 = 0,
+    DEVICEDEBUG_NUM_1,
+    DEVICEDEBUG_NUM_2,
+    DEVICEDEBUG_NUM_3,
+    DEVICEDEBUG_NUM_4,
+    DEVICEDEBUG_NUM_5,
+    DEVICEDEBUG_NUM_6,
+    DEVICEDEBUG_NUM_7
+};
+
+// 0x11 操作类型非法
+#define DEVICEDEBUG_ERRNO_OPERATOR_TYPE_INVALID    0x11
+// 0x12 参数缺失
+#define DEVICEDEBUG_ERRNO_OPERATOR_ARGV_MISS       0x12
+// 0x13 非开发者模式
+#define DEVICEDEBUG_ERRNO_NOT_IN_DEVELOPER_MODE    0x13
+// 0x14 创建json对象失败
+#define DEVICEDEBUG_ERRNO_JSON_CREATED_FAILED      0x14
+// 0x16 参数错误
+#define DEVICEDEBUG_ERRNO_PARAM_INVALID            0x16
+
+#define DEVICEDEBUG_LOGI(args, ...) \
+    HILOG_INFO(LOG_CORE, "[%{public}s:%{public}d]" args, (__FILE_NAME__), (__LINE__), ##__VA_ARGS__)
+
+#define DEVICEDEBUG_LOGE(args, ...) \
+    HILOG_ERROR(LOG_CORE, "[%{public}s:%{public}d]" args, (__FILE_NAME__), (__LINE__), ##__VA_ARGS__)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
\ No newline at end of file
diff --git a/service/devicedebug/devicedebug_main.c b/service/devicedebug/devicedebug_main.c
new file mode 100644
index 00000000..5aa22a9c
--- /dev/null
+++ b/service/devicedebug/devicedebug_main.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "devicedebug_base.h"
+#include "devicedebug_kill.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef int (*DEVICEDEBUG_CMD_PROCESS_FUNC)(int argc, char *argv[]);
+
+typedef struct DeviceDebugManagerCmdInfoStru {
+    char *cmd;
+    DEVICEDEBUG_CMD_PROCESS_FUNC process;
+} DeviceDebugManagerCmdInfo;
+
+APPSPAWN_STATIC int DeviceDebugShowHelp(int argc, char *argv[])
+{
+    (void)argc;
+    (void)argv;
+
+    printf("\r\nusage: devicedebug <command> <options>\r\n"
+        "\r\nThese are common devicedebug commands list:\r\n"
+        "\r\n         help              list available commands"
+        "\r\n         kill              send a signal to a process\r\n");
+
+    return 0;
+}
+
+DeviceDebugManagerCmdInfo g_deviceDebugManagerCmd[] = {
+    {"help", DeviceDebugShowHelp},
+    {"-h", DeviceDebugShowHelp},
+    {"kill", DeviceDebugCmdKill},
+};
+
+APPSPAWN_STATIC DeviceDebugManagerCmdInfo* DeviceDebugCmdCheck(const char *cmd)
+{
+    int cmdNum = sizeof(g_deviceDebugManagerCmd) / sizeof(DeviceDebugManagerCmdInfo);
+
+    for (int i = 0; i < cmdNum; i++) {
+        if (!strcmp(cmd, g_deviceDebugManagerCmd[i].cmd)) {
+            return &g_deviceDebugManagerCmd[i];
+        }
+    }
+    return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+    int ret = 0;
+    DeviceDebugManagerCmdInfo *cmdInfo = NULL;
+
+    if (argc < DEVICEDEBUG_NUM_2) {
+        DeviceDebugShowHelp(argc, argv);
+        return DEVICEDEBUG_ERRNO_PARAM_INVALID;
+    }
+
+    DEVICEDEBUG_LOGI("devicedebug manager process start.");
+
+    /* 检验用户命令，获取对应的处理函数 */
+    cmdInfo = DeviceDebugCmdCheck(argv[DEVICEDEBUG_NUM_1]);
+    if (cmdInfo == NULL) {
+        DEVICEDEBUG_LOGE("invalid cmd!. cmd:%{public}s\r\n", argv[DEVICEDEBUG_NUM_1]);
+        return DEVICEDEBUG_ERRNO_OPERATOR_TYPE_INVALID;
+    }
+
+    /* 执行命令 */
+    ret = cmdInfo->process(argc, argv);
+
+    /* 返回值依赖此条log打印，切勿随意修改 */
+    DEVICEDEBUG_LOGI("devicedebug manager process exit. ret=%{public}d \r\n", ret);
+    return ret;
+}
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file
diff --git a/service/devicedebug/kill/include/devicedebug_kill.h b/service/devicedebug/kill/include/devicedebug_kill.h
new file mode 100644
index 00000000..fd27bc27
--- /dev/null
+++ b/service/devicedebug/kill/include/devicedebug_kill.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DEVICEDEBUG_KILL_H
+#define DEVICEDEBUG_KILL_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int DeviceDebugCmdKill(int argc, char *argv[]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
\ No newline at end of file
diff --git a/service/devicedebug/kill/src/devicedebug_kill.c b/service/devicedebug/kill/src/devicedebug_kill.c
new file mode 100644
index 00000000..5bb0a1b7
--- /dev/null
+++ b/service/devicedebug/kill/src/devicedebug_kill.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+
+#include "appspawn.h"
+#include "appspawn_utils.h"
+
+#include "devicedebug_base.h"
+#include "devicedebug_kill.h"
+#include "cJSON.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DEVICEDEBUG_KILL_CMD_NUM 4
+#define DEVICEDEBUG_KILL_CMD_SIGNAL_INDEX 2
+#define DEVICEDEBUG_KILL_CMD_PID_INDEX 3
+
+APPSPAWN_STATIC void DeviceDebugShowKillHelp(void)
+{
+    printf("\r\nusage: devicedebug kill [options] <pid>"
+        "\r\noptions list:"
+        "\r\n         -h, --help                list available commands"
+        "\r\n         kill -<signal> <pid>      send a signal to a process\r\n");
+}
+
+APPSPAWN_STATIC char* DeviceDebugJsonStringGeneral(int pid, const char *op, cJSON *args)
+{
+    cJSON *root = cJSON_CreateObject();
+    if (root == NULL) {
+        DEVICEDEBUG_LOGE("devicedebug json write create root object unsuccess");
+        return NULL;
+    }
+
+    cJSON_AddNumberToObject(root, "app", pid);
+    cJSON_AddStringToObject(root, "op", op);
+    cJSON_AddItemToObject(root, "args", args);
+
+    char *jsonString = cJSON_Print(root);
+    cJSON_Delete(root);
+    return jsonString;
+}
+
+APPSPAWN_STATIC int DeviceDebugKill(int pid, int signal)
+{
+    AppSpawnClientHandle clientHandle;
+    int ret = AppSpawnClientInit(APPSPAWN_SERVER_NAME, &clientHandle);
+    if (ret != 0) {
+        DEVICEDEBUG_LOGE("devicedebug appspawn client init unsuccess, ret=%{public}d", ret);
+        return ret;
+    }
+
+    AppSpawnReqMsgHandle reqHandle;
+    ret = AppSpawnReqMsgCreate(MSG_DEVICE_DEBUG, "devicedebug", &reqHandle);
+    if (ret != 0) {
+        DEVICEDEBUG_LOGE("devicedebug appspawn message create unsuccess, ret=%{public}d", ret);
+        return ret;
+    }
+
+    cJSON *args = cJSON_CreateObject();
+    if (args == NULL) {
+        DEVICEDEBUG_LOGE("devicedebug json write create args object unsuccess");
+        return DEVICEDEBUG_ERRNO_JSON_CREATED_FAILED;
+    }
+    cJSON_AddNumberToObject(args, "signal", signal);
+    char *jsonString = DeviceDebugJsonStringGeneral(pid, "kill", args);
+    if (jsonString == NULL) {
+        cJSON_Delete(args);
+        return DEVICEDEBUG_ERRNO_JSON_CREATED_FAILED;
+    }
+
+    ret = AppSpawnReqMsgAddExtInfo(reqHandle, "devicedebug", (uint8_t *)jsonString, strlen(jsonString) + 1);
+    if (ret != 0) {
+        DEVICEDEBUG_LOGE("devicedebug appspawn message add devicedebug[%{public}s] unsuccess, ret=%{public}d",
+            jsonString, ret);
+        return ret;
+    }
+
+    AppSpawnResult result = {0};
+    ret = AppSpawnClientSendMsg(clientHandle, reqHandle, &result);
+    AppSpawnClientDestroy(clientHandle);
+    if (ret != 0) {
+        DEVICEDEBUG_LOGE("devicedebug appspawn send msg unsuccess, ret=%{public}d", ret);
+        return ret;
+    }
+
+    if (result.result != 0) {
+        DEVICEDEBUG_LOGE("devicedebug appspawn kill process unsuccess, result=%{public}d", result.result);
+        return result.result;
+    }
+
+    return 0;
+}
+
+int DeviceDebugCmdKill(int argc, char *argv[])
+{
+    if (!IsDeveloperModeOpen()) {
+        return DEVICEDEBUG_ERRNO_NOT_IN_DEVELOPER_MODE;
+    }
+
+    if (argc <= DEVICEDEBUG_NUM_2 || strcmp(argv[DEVICEDEBUG_NUM_2], "-h") == 0 ||
+        strcmp(argv[DEVICEDEBUG_NUM_2], "help") == 0) {
+        DeviceDebugShowKillHelp();
+        return 0;
+    }
+
+    if (argc < DEVICEDEBUG_KILL_CMD_NUM) {
+        DEVICEDEBUG_LOGE("devicedebug cmd operator num is %{public}d < %{public}d", argc, DEVICEDEBUG_KILL_CMD_NUM);
+        DeviceDebugShowKillHelp();
+        return DEVICEDEBUG_ERRNO_OPERATOR_ARGV_MISS;
+    }
+
+    int signal = atoi(argv[DEVICEDEBUG_KILL_CMD_SIGNAL_INDEX] + 1);
+    if (signal > SIGRTMAX || signal <= 0) {
+        DEVICEDEBUG_LOGE("signal is %{public}d > %{public}d", signal, SIGRTMAX);
+        DeviceDebugShowKillHelp();
+        return DEVICEDEBUG_ERRNO_PARAM_INVALID;
+    }
+
+    int pid = atoi(argv[DEVICEDEBUG_KILL_CMD_PID_INDEX]);
+    DEVICEDEBUG_LOGI("devicedebug cmd kill start signal[%{public}d], pid[%{public}d]", signal, pid);
+
+    return DeviceDebugKill(pid, signal);
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/standard/BUILD.gn b/standard/BUILD.gn
index dfe0dd28..ec2ee283 100644
--- a/standard/BUILD.gn
+++ b/standard/BUILD.gn
@@ -72,6 +72,7 @@ ohos_executable("appspawn") {
   }
 
   external_deps = [
+    "cJSON:cjson",
     "c_utils:utils",
     "config_policy:configpolicy_util",
     "hilog:libhilog",
@@ -183,6 +184,7 @@ ohos_executable("cjappspawn") {
   }
 
   external_deps = [
+    "cJSON:cjson",
     "c_utils:utils",
     "config_policy:configpolicy_util",
     "hilog:libhilog",
@@ -253,6 +255,7 @@ ohos_executable("nativespawn") {
   }
 
   external_deps = [
+    "cJSON:cjson",
     "c_utils:utils",
     "config_policy:configpolicy_util",
     "hilog:libhilog",
diff --git a/standard/appspawn_appmgr.c b/standard/appspawn_appmgr.c
index 3f0d08df..93da4f54 100644
--- a/standard/appspawn_appmgr.c
+++ b/standard/appspawn_appmgr.c
@@ -137,7 +137,7 @@ static int AppInfoCompareProc(ListNode *node, ListNode *newNode)
     return node1->pid - node2->pid;
 }
 
-AppSpawnedProcess *AddSpawnedProcess(pid_t pid, const char *processName)
+AppSpawnedProcess *AddSpawnedProcess(pid_t pid, const char *processName, bool isDebuggable)
 {
     APPSPAWN_CHECK(g_appSpawnMgr != NULL && processName != NULL, return NULL, "Invalid mgr or process name");
     APPSPAWN_CHECK(pid > 0, return NULL, "Invalid pid for %{public}s", processName);
@@ -150,6 +150,7 @@ AppSpawnedProcess *AddSpawnedProcess(pid_t pid, const char *processName)
     node->max = 0;
     node->uid = 0;
     node->exitStatus = 0;
+    node->isDebuggable = isDebuggable;
     int ret = strcpy_s(node->name, len, processName);
     APPSPAWN_CHECK(ret == 0, free(node);
         return NULL, "Failed to strcpy process name");
diff --git a/standard/appspawn_manager.h b/standard/appspawn_manager.h
index 6a4c7945..eb261354 100644
--- a/standard/appspawn_manager.h
+++ b/standard/appspawn_manager.h
@@ -97,6 +97,7 @@ typedef struct TagAppSpawnedProcess {
 #ifdef DEBUG_BEGETCTL_BOOT
     AppSpawnMsgNode *message;
 #endif
+    bool isDebuggable;
     char name[0];
 } AppSpawnedProcess;
 
@@ -136,7 +137,7 @@ AppSpawnContent *GetAppSpawnContent(void);
  */
 typedef void (*AppTraversal)(const AppSpawnMgr *mgr, AppSpawnedProcess *appInfo, void *data);
 void TraversalSpawnedProcess(AppTraversal traversal, void *data);
-AppSpawnedProcess *AddSpawnedProcess(pid_t pid, const char *processName);
+AppSpawnedProcess *AddSpawnedProcess(pid_t pid, const char *processName, bool isDebuggable);
 AppSpawnedProcess *GetSpawnedProcess(pid_t pid);
 AppSpawnedProcess *GetSpawnedProcessByName(const char *name);
 void TerminateSpawnedProcess(AppSpawnedProcess *node);
diff --git a/standard/appspawn_service.c b/standard/appspawn_service.c
index ab502132..70101949 100644
--- a/standard/appspawn_service.c
+++ b/standard/appspawn_service.c
@@ -42,6 +42,7 @@
 #include "parameter.h"
 #include "appspawn_adapter.h"
 #include "securec.h"
+#include "cJSON.h"
 #ifdef APPSPAWN_HISYSEVENT
 #include "appspawn_hisysevent.h"
 #endif
@@ -52,6 +53,7 @@
 #define PATH_SIZE 256
 #define FD_PATH_SIZE 128
 #define MAX_MEM_SIZE (4 * 1024)
+#define APPSPAWN_MSG_USER_CHECK_COUNT 3
 #define PREFORK_PROCESS "apppool"
 #ifndef PIDFD_NONBLOCK
 #define PIDFD_NONBLOCK O_NONBLOCK
@@ -340,6 +342,28 @@ static int HandleRecvMessage(const TaskHandle taskHandle, uint8_t * buffer, int
     return recvLen;
 }
 
+APPSPAWN_STATIC bool OnConnectionUserCheck(uid_t uid)
+{
+    const uid_t uids[APPSPAWN_MSG_USER_CHECK_COUNT] = {
+        0, // root 0
+        3350, // app_fwk_update 3350
+        5523, // foundation 5523
+    };
+
+    for (int i = 0; i < APPSPAWN_MSG_USER_CHECK_COUNT; i++) {
+        if (uid == uids[i]) {
+            return true;
+        }
+    }
+
+    // shell 2000
+    if (uid == 2000 && IsDeveloperModeOpen()) {
+        return true;
+    }
+
+    return false;
+}
+
 static int OnConnection(const LoopHandle loopHandle, const TaskHandle server)
 {
     APPSPAWN_CHECK(server != NULL && loopHandle != NULL, return -1, "Error server");
@@ -361,8 +385,7 @@ static int OnConnection(const LoopHandle loopHandle, const TaskHandle server)
     struct ucred cred = {-1, -1, -1};
     socklen_t credSize = sizeof(struct ucred);
     if ((getsockopt(LE_GetSocketFd(stream), SOL_SOCKET, SO_PEERCRED, &cred, &credSize) < 0) ||
-        (cred.uid != DecodeUid("foundation") && cred.uid != DecodeUid("root")
-        && cred.uid != DecodeUid("app_fwk_update"))) {
+        !OnConnectionUserCheck(cred.uid)) {
         APPSPAWN_LOGE("Invalid uid %{public}d from client", cred.uid);
         LE_CloseStreamTask(LE_GetDefaultLoop(), stream);
         return -1;
@@ -381,6 +404,27 @@ static int OnConnection(const LoopHandle loopHandle, const TaskHandle server)
     return 0;
 }
 
+APPSPAWN_STATIC bool MsgDevicedebugCheck(TaskHandle stream, AppSpawnMsgNode *message)
+{
+    struct ucred cred = {0, 0, 0};
+    socklen_t credSize = sizeof(cred);
+    if (getsockopt(LE_GetSocketFd(stream), SOL_SOCKET, SO_PEERCRED, &cred, &credSize) < 0) {
+        return false;
+    }
+
+    if (cred.uid != DecodeUid("shell")) {
+        return true;
+    }
+
+    AppSpawnMsg *msg = &message->msgHeader;
+    if (msg->msgType != MSG_DEVICE_DEBUG) {
+        APPSPAWN_LOGE("appspawn devicedebug msg type is not devicedebug [%{public}d]", msg->msgType);
+        return false;
+    }
+
+    return true;
+}
+
 static void OnReceiveRequest(const TaskHandle taskHandle, const uint8_t *buffer, uint32_t buffLen)
 {
     AppSpawnConnection *connection = (AppSpawnConnection *)LE_GetUserData(taskHandle);
@@ -412,6 +456,10 @@ static void OnReceiveRequest(const TaskHandle taskHandle, const uint8_t *buffer,
             LE_StopTimer(LE_GetDefaultLoop(), connection->receiverCtx.timer);
             connection->receiverCtx.timer = NULL;
         }
+
+        APPSPAWN_CHECK_ONLY_EXPER(MsgDevicedebugCheck(connection->stream, message),
+            LE_CloseTask(LE_GetDefaultLoop(), taskHandle); return);
+
         // decode msg
         ret = DecodeAppSpawnMsg(message);
         APPSPAWN_CHECK_ONLY_EXPER(ret == 0, break);
@@ -922,6 +970,24 @@ static void WaitChildTimeout(const TimerHandle taskHandle, void *context)
     DeleteAppSpawningCtx(property);
 }
 
+static int ProcessChildFdCheck(int fd, AppSpawningCtx *property, int *pResult)
+{
+    int result = 0;
+    (void)read(fd, &result, sizeof(result));
+    APPSPAWN_LOGI("Child process %{public}s success pid %{public}d appId: %{public}d result: %{public}d",
+        GetProcessName(property), property->pid, property->client.id, result);
+    APPSPAWN_CHECK(property->message != NULL, return -1, "Invalid message in ctx %{public}d", property->client.id);
+
+    if (result != 0) {
+        SendResponse(property->message->connection, &property->message->msgHeader, result, property->pid);
+        DeleteAppSpawningCtx(property);
+        return -1;
+    }
+    *pResult = result;
+    
+    return 0;
+}
+
 #define MSG_EXT_NAME_MAX_DECIMAL 10
 #define MSG_EXT_NAME 1
 static void ProcessChildResponse(const WatcherHandle taskHandle, int fd, uint32_t *events, const void *context)
@@ -931,18 +997,13 @@ static void ProcessChildResponse(const WatcherHandle taskHandle, int fd, uint32_
     LE_RemoveWatcher(LE_GetDefaultLoop(), (WatcherHandle)taskHandle);
 
     int result = 0;
-    (void)read(fd, &result, sizeof(result));
-    APPSPAWN_LOGI("Child process %{public}s success pid %{public}d appId: %{public}d result: %{public}d",
-        GetProcessName(property), property->pid, property->client.id, result);
-    APPSPAWN_CHECK(property->message != NULL, return, "Invalid message in ctx %{public}d", property->client.id);
-
-    if (result != 0) {
-        SendResponse(property->message->connection, &property->message->msgHeader, result, property->pid);
-        DeleteAppSpawningCtx(property);
+    if (ProcessChildFdCheck(fd, property, &result) != 0) {
         return;
     }
+
     // success
-    AppSpawnedProcess *appInfo = AddSpawnedProcess(property->pid, GetBundleName(property));
+    bool isDebuggable = CheckAppMsgFlagsSet(property, APP_FLAGS_DEBUGGABLE) == 1 ? true : false;
+    AppSpawnedProcess *appInfo = AddSpawnedProcess(property->pid, GetBundleName(property), isDebuggable);
     uint32_t len = 0;
     char *pidMaxStr = NULL;
     pidMaxStr = GetAppPropertyExt(property, MSG_EXT_NAME_MAX_CHILD_PROCCESS_MAX, &len);
@@ -1278,7 +1339,7 @@ AppSpawnContent *StartSpawnService(const AppSpawnStartArg *startArg, uint32_t ar
 #endif
     AddAppSpawnHook(STAGE_CHILD_PRE_RUN, HOOK_PRIO_LOWEST, AppSpawnClearEnv);
     if (arg->mode == MODE_FOR_APP_SPAWN) {
-        AddSpawnedProcess(pid, NWEBSPAWN_SERVER_NAME);
+        AddSpawnedProcess(pid, NWEBSPAWN_SERVER_NAME, false);
         SetParameter("bootevent.appspawn.started", "true");
     }
     return content;
@@ -1477,6 +1538,85 @@ static void ProcessSpawnRestartMsg(AppSpawnConnection *connection, AppSpawnMsgNo
     APPSPAWN_LOGE("Failed to execv, ret %{public}d, errno %{public}d", ret, errno);
 }
 
+APPSPAWN_STATIC int AppspawpnDevicedebugKill(int pid, cJSON *args)
+{
+    cJSON *signal = cJSON_GetObjectItem(args, "signal");
+    if (!cJSON_IsNumber(signal)) {
+        APPSPAWN_LOGE("appspawn devicedebug json get signal fail");
+        return -1;
+    }
+
+    AppSpawnedProcess *appInfo = GetSpawnedProcess(pid);
+    if (appInfo == NULL) {
+        APPSPAWN_LOGE("appspawn devicedebug get app info unsuccess, pid=%{public}d", pid);
+        return -1;
+    }
+
+    if (!appInfo->isDebuggable) {
+        APPSPAWN_LOGE("appspawn devicedebug process is not debuggable, pid=%{public}d", pid);
+        return -1;
+    }
+
+    APPSPAWN_LOGI("appspawn devicedebug debugable=%{public}d, pid=%{public}d, signal=%{public}d",
+        appInfo->isDebuggable, pid, signal->valueint);
+
+    if (kill(pid, signal->valueint) != 0) {
+        APPSPAWN_LOGE("appspawn devicedebug unable to kill process, pid: %{public}d ret %{public}d", pid, errno);
+        return -1;
+    }
+
+    return 0;
+}
+
+APPSPAWN_STATIC int AppspawnDevicedebugDeal(const char* op, int pid, cJSON *args)
+{
+    if (strcmp(op, "kill") == 0) {
+        return AppspawpnDevicedebugKill(pid, args);
+    }
+    
+    APPSPAWN_LOGE("appspawn devicedebug op:%{public}s invaild", op);
+
+    return -1;
+}
+
+APPSPAWN_STATIC int ProcessAppSpawnDeviceDebugMsg(AppSpawnMsgNode *message)
+{
+    APPSPAWN_CHECK_ONLY_EXPER(message != NULL, return -1);
+    uint32_t len = 0;
+
+    const char* jsonString = (char *)GetAppSpawnMsgExtInfo(message, "devicedebug", &len);
+    if (jsonString == NULL || len == 0) {
+        APPSPAWN_LOGE("appspawn devicedebug get devicedebug fail");
+        return -1;
+    }
+
+    cJSON *json = cJSON_Parse(jsonString);
+    if (json == NULL) {
+        APPSPAWN_LOGE("appspawn devicedebug json parse fail");
+        return -1;
+    }
+
+    cJSON *app = cJSON_GetObjectItem(json, "app");
+    if (!cJSON_IsNumber(app)) {
+        APPSPAWN_LOGE("appspawn devicedebug json get app fail");
+        return -1;
+    }
+
+    cJSON *op = cJSON_GetObjectItem(json, "op");
+    if (!cJSON_IsString(op) || op->valuestring == NULL) {
+        APPSPAWN_LOGE("appspawn devicedebug json get op fail");
+        return -1;
+    }
+
+    cJSON *args = cJSON_GetObjectItem(json, "args");
+    if (!cJSON_IsObject(args)) {
+        APPSPAWN_LOGE("appspawn devicedebug json get args fail");
+        return -1;
+    }
+
+    return AppspawnDevicedebugDeal(op->valuestring, app->valueint, args);
+}
+
 static void ProcessRecvMsg(AppSpawnConnection *connection, AppSpawnMsgNode *message)
 {
     AppSpawnMsg *msg = &message->msgHeader;
@@ -1521,6 +1661,11 @@ static void ProcessRecvMsg(AppSpawnConnection *connection, AppSpawnMsgNode *mess
         case MSG_RESTART_SPAWNER:
             ProcessSpawnRestartMsg(connection, message);
             break;
+        case MSG_DEVICE_DEBUG:
+            ret = ProcessAppSpawnDeviceDebugMsg(message);
+            SendResponse(connection, msg, ret, 0);
+            DeleteAppSpawnMsg(message);
+            break;
         default:
             SendResponse(connection, msg, APPSPAWN_MSG_INVALID, 0);
             DeleteAppSpawnMsg(message);
diff --git a/test/BUILD.gn b/test/BUILD.gn
index 7ae5d78e..25fcacb6 100644
--- a/test/BUILD.gn
+++ b/test/BUILD.gn
@@ -29,6 +29,7 @@ group("unittest") {
       deps += [ "unittest/app_spawn_standard_test:AppSpawn_ut" ]
     }
     deps += [ "unittest/hnp_test:HnpTest" ]
+    deps += [ "unittest/devicedebug_test:DevicedebugTest" ]
   } else {
     testonly = true
     deps = [ "unittest/app_spawn_lite_test:unittest" ]
diff --git a/test/unittest/app_spawn_standard_test/app_spawn_appmgr_test.cpp b/test/unittest/app_spawn_standard_test/app_spawn_appmgr_test.cpp
index 773f2e92..64787af2 100644
--- a/test/unittest/app_spawn_standard_test/app_spawn_appmgr_test.cpp
+++ b/test/unittest/app_spawn_standard_test/app_spawn_appmgr_test.cpp
@@ -124,7 +124,7 @@ HWTEST_F(AppSpawnAppMgrTest, App_Spawn_AppSpawnedProcess_001, TestSize.Level0)
     int result[resultCount] = {0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0};
     for (size_t i = 0; i < processNameCount; i++) {
         for (size_t j = 0; j < pidCount; j++) {
-            AppSpawnedProcess *app = AddSpawnedProcess(pidInput[j], processNameInput[i]);
+            AppSpawnedProcess *app = AddSpawnedProcess(pidInput[j], processNameInput[i], false);
             EXPECT_EQ(app != nullptr, result[i * pidCount + j]);
         }
     }
@@ -167,7 +167,7 @@ HWTEST_F(AppSpawnAppMgrTest, App_Spawn_AppSpawnedProcess_002, TestSize.Level0)
     int result[resultCount] = {0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0};
     for (size_t i = 0; i < processNameCount; i++) {
         for (size_t j = 0; j < pidCount; j++) {
-            AppSpawnedProcess *app = AddSpawnedProcess(pidInput[j], processNameInput[i]);
+            AppSpawnedProcess *app = AddSpawnedProcess(pidInput[j], processNameInput[i], false);
             EXPECT_EQ(app != nullptr, result[i * pidCount + j]);
         }
     }
@@ -205,7 +205,7 @@ HWTEST_F(AppSpawnAppMgrTest, App_Spawn_AppSpawnedProcess_003, TestSize.Level0)
     // GetSpawnedProcessByName
     size_t processNameCount = ARRAY_LENGTH(processNameInput);
     for (size_t i = 0; i < processNameCount; i++) {
-        AppSpawnedProcess *app = AddSpawnedProcess(1000, processNameInput[i]); // 10000
+        AppSpawnedProcess *app = AddSpawnedProcess(1000, processNameInput[i], false); // 10000
         EXPECT_EQ(app != nullptr, 1);
     }
     for (size_t i = 0; i < processNameCount; i++) {
@@ -492,7 +492,7 @@ HWTEST_F(AppSpawnAppMgrTest, App_Spawn_AppSpawnMsgNode_005, TestSize.Level0)
     EXPECT_EQ(memcmp(buffer.data() + sizeof(AppSpawnMsg), outMsg->buffer, msgLen - sizeof(AppSpawnMsg)), 0);
     EXPECT_EQ(0, reminder);
 
-    AppSpawnedProcess *app = AddSpawnedProcess(9999999, "aaaa"); // 9999999 test
+    AppSpawnedProcess *app = AddSpawnedProcess(9999999, "aaaa", false); // 9999999 test
     EXPECT_EQ(app != nullptr, 1);
     TerminateSpawnedProcess(app);
     AppSpawnExtData extData;
@@ -540,7 +540,7 @@ HWTEST_F(AppSpawnAppMgrTest, App_Spawn_AppSpawnMsgNode_006, TestSize.Level0)
     EXPECT_EQ(memcmp(buffer.data() + sizeof(AppSpawnMsg), outMsg->buffer, msgLen - sizeof(AppSpawnMsg)), 0);
     EXPECT_EQ(0, reminder);
 
-    AppSpawnedProcess *app = AddSpawnedProcess(9999999, "aaaa"); // 9999999 test
+    AppSpawnedProcess *app = AddSpawnedProcess(9999999, "aaaa", false); // 9999999 test
     EXPECT_EQ(app != nullptr, 1);
 
     ret = DecodeAppSpawnMsg(outMsg);
diff --git a/test/unittest/app_spawn_standard_test/app_spawn_module_interface_test.cpp b/test/unittest/app_spawn_standard_test/app_spawn_module_interface_test.cpp
index 689b7ed0..eed9eac9 100644
--- a/test/unittest/app_spawn_standard_test/app_spawn_module_interface_test.cpp
+++ b/test/unittest/app_spawn_standard_test/app_spawn_module_interface_test.cpp
@@ -183,7 +183,7 @@ HWTEST_F(AppSpawnModuleInterfaceTest, App_Spawn_Process_Hook_001, TestSize.Level
 {
     AppSpawnMgr *mgr = CreateAppSpawnMgr(MODE_FOR_NWEB_SPAWN);
     EXPECT_EQ(mgr != nullptr, 1);
-    AppSpawnedProcess *app = AddSpawnedProcess(1000, "test-001");
+    AppSpawnedProcess *app = AddSpawnedProcess(1000, "test-001", false);
     EXPECT_EQ(app != nullptr, 1);
 
     int ret = 0;
diff --git a/test/unittest/app_spawn_standard_test/app_spawn_service_test.cpp b/test/unittest/app_spawn_standard_test/app_spawn_service_test.cpp
index fff0b3df..910ed625 100644
--- a/test/unittest/app_spawn_standard_test/app_spawn_service_test.cpp
+++ b/test/unittest/app_spawn_standard_test/app_spawn_service_test.cpp
@@ -31,6 +31,7 @@
 #include "json_utils.h"
 #include "parameter.h"
 #include "securec.h"
+#include "cJSON.h"
 
 #include "app_spawn_stub.h"
 #include "app_spawn_test_helper.h"
@@ -547,6 +548,88 @@ HWTEST_F(AppSpawnServiceTest, App_Spawn_Msg_008, TestSize.Level0)
     ASSERT_EQ(ret, 0);
 }
 
+HWTEST_F(AppSpawnServiceTest, App_Spawn_Msg_009, TestSize.Level0)
+{
+    int ret = 0;
+    char pid[16];
+    AppSpawnClientHandle clientHandle = nullptr;
+    AppSpawnResult result = {};
+    do {
+        ret = AppSpawnClientInit(APPSPAWN_SERVER_NAME, &clientHandle);
+        APPSPAWN_CHECK(ret == 0, break, "Failed to create client %{public}s", APPSPAWN_SERVER_NAME);
+        AppSpawnReqMsgHandle reqHandle = testServer->CreateMsg(clientHandle, MSG_SPAWN_NATIVE_PROCESS, 0);
+
+        AppSpawnReqMsgSetAppFlag(reqHandle, APP_FLAGS_NATIVEDEBUG);
+        AppSpawnReqMsgSetAppFlag(reqHandle, APP_FLAGS_BUNDLE_RESOURCES);
+        AppSpawnReqMsgSetAppFlag(reqHandle, APP_FLAGS_ACCESS_BUNDLE_DIR);
+
+        ret = AppSpawnClientSendMsg(clientHandle, reqHandle, &result);
+        APPSPAWN_CHECK(ret == 0, break, "Failed to send msg %{public}d", ret);
+
+        AppSpawnedProcess *app = GetSpawnedProcessByName(testServer->GetDefaultTestAppBundleName());
+        EXPECT_NE(app, nullptr);
+
+        AppSpawnReqMsgHandle reqHandle2;
+        ret = AppSpawnReqMsgCreate(MSG_DEVICE_DEBUG, "devicedebug", &reqHandle2);
+        EXPECT_GT(sprintf_s(pid, 16, "%d", app->pid), 0);
+        AppSpawnReqMsgAddStringInfo(reqHandle2, "signal", "-9");
+        AppSpawnReqMsgAddStringInfo(reqHandle2, "pid", pid);
+        ret = AppSpawnClientSendMsg(clientHandle, reqHandle2, &result);
+        APPSPAWN_CHECK(ret == 0 && result.result == 0, break, "Failed to send msg ret:%{public}d, result:%{public}d",
+            ret, result.result);
+        ASSERT_EQ(kill(app->pid, SIGKILL), 0);
+    } while (0);
+
+    AppSpawnClientDestroy(clientHandle);
+    ASSERT_EQ(ret, 0);
+    ASSERT_EQ(result.result, -1);
+}
+
+HWTEST_F(AppSpawnServiceTest, App_Spawn_Msg_010, TestSize.Level0)
+{
+    int ret = 0;
+    AppSpawnClientHandle clientHandle = nullptr;
+    AppSpawnResult result = {};
+    do {
+        ret = AppSpawnClientInit(APPSPAWN_SERVER_NAME, &clientHandle);
+        APPSPAWN_CHECK(ret == 0, break, "Failed to create client %{public}s", APPSPAWN_SERVER_NAME);
+        AppSpawnReqMsgHandle reqHandle = testServer->CreateMsg(clientHandle, MSG_SPAWN_NATIVE_PROCESS, 0);
+
+        AppSpawnReqMsgSetAppFlag(reqHandle, APP_FLAGS_DEBUGGABLE);
+        AppSpawnReqMsgSetAppFlag(reqHandle, APP_FLAGS_NATIVEDEBUG);
+        AppSpawnReqMsgSetAppFlag(reqHandle, APP_FLAGS_BUNDLE_RESOURCES);
+        AppSpawnReqMsgSetAppFlag(reqHandle, APP_FLAGS_ACCESS_BUNDLE_DIR);
+
+        ret = AppSpawnClientSendMsg(clientHandle, reqHandle, &result);
+        APPSPAWN_CHECK(ret == 0, break, "Failed to send msg %{public}d", ret);
+
+        AppSpawnedProcess *app = GetSpawnedProcessByName(testServer->GetDefaultTestAppBundleName());
+        EXPECT_NE(app, nullptr);
+
+        AppSpawnReqMsgHandle reqHandle2;
+        ret = AppSpawnReqMsgCreate(MSG_DEVICE_DEBUG, "devicedebug", &reqHandle2);
+        cJSON *args = cJSON_CreateObject();
+        EXPECT_NE(args, nullptr);
+        cJSON_AddNumberToObject(args, "signal", 9);
+        cJSON *root = cJSON_CreateObject();
+        EXPECT_NE(root, nullptr);
+        cJSON_AddNumberToObject(root, "app", app->pid);
+        cJSON_AddStringToObject(root, "op", "kill");
+        cJSON_AddItemToObject(root, "args", args);
+        char *jsonString = cJSON_Print(root);
+        cJSON_Delete(root);
+        ret = AppSpawnReqMsgAddExtInfo(reqHandle2, "devicedebug", (uint8_t *)jsonString, strlen(jsonString) + 1);
+        ASSERT_EQ(ret, 0);
+        ret = AppSpawnClientSendMsg(clientHandle, reqHandle2, &result);
+        APPSPAWN_CHECK(ret == 0 && result.result == 0, break, "Failed to send msg ret:%{public}d, result:%{public}d",
+            ret, result.result);
+    } while (0);
+
+    AppSpawnClientDestroy(clientHandle);
+    ASSERT_EQ(ret, 0);
+    ASSERT_EQ(result.result, 0);
+}
+
 /**
  * @brief 必须最后一个，kill nwebspawn，appspawn的线程结束
  *
diff --git a/test/unittest/devicedebug_test/BUILD.gn b/test/unittest/devicedebug_test/BUILD.gn
new file mode 100644
index 00000000..b075d6c8
--- /dev/null
+++ b/test/unittest/devicedebug_test/BUILD.gn
@@ -0,0 +1,63 @@
+# Copyright (c) 2021-2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import("//base/startup/appspawn/appspawn.gni")
+import("//build/test.gni")
+
+if (!defined(ohos_lite)) {
+  ohos_unittest("DevicedebugTest") {
+    module_out_path = "${module_output_path}"
+    cflags = [
+      "-Wno-implicit-fallthrough",
+      "-Wno-unused-function",
+      "-Dprivate=public",
+      "-Dprotected=public",
+    ]
+
+    cflags_cc = [
+      "-Wno-implicit-fallthrough",
+      "-fexceptions",
+    ]
+
+    include_dirs = [
+      "${appspawn_path}/service/devicedebug/base",
+      "${appspawn_path}/service/devicedebug/kill/include",
+      "${appspawn_path}/test/unittest/devicedebug_test",
+    ]
+
+    sources = [
+      "${appspawn_path}/service/devicedebug/kill/src/devicedebug_kill.c",
+      "${appspawn_path}/test/unittest/devicedebug_test/devicedebug_stub.c",
+      "devicedebug_kill_test.cpp",
+    ]
+
+    defines = [
+      "IsDeveloperModeOpen=IsDeveloperModeOpenStub",
+      "AppSpawnClientInit=AppSpawnClientInitStub",
+      "AppSpawnReqMsgCreate=AppSpawnReqMsgCreateStub",
+      "AppSpawnReqMsgAddExtInfo=AppSpawnReqMsgAddExtInfoStub",
+      "AppSpawnClientSendMsg=AppSpawnClientSendMsgStub",
+      "APPSPAWN_TEST",
+    ]
+
+    external_deps = [
+      "cJSON:cjson",
+      "hilog:libhilog",
+    ]
+
+    deps = [
+      "${appspawn_path}/interfaces/innerkits/client:appspawn_client",
+      "${appspawn_path}/service/devicedebug:devicedebug",
+      "${appspawn_path}/util:libappspawn_util",
+    ]
+  }
+}
diff --git a/test/unittest/devicedebug_test/devicedebug_kill_test.cpp b/test/unittest/devicedebug_test/devicedebug_kill_test.cpp
new file mode 100644
index 00000000..3330489c
--- /dev/null
+++ b/test/unittest/devicedebug_test/devicedebug_kill_test.cpp
@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+#include <csignal>
+
+#include "devicedebug_base.h"
+#include "devicedebug_kill.h"
+#include "devicedebug_stub.h"
+
+using namespace testing;
+using namespace testing::ext;
+
+namespace OHOS {
+class DevicedebugKillTest : public testing::Test {
+public:
+    static void SetUpTestCase();
+    static void TearDownTestCase();
+    void SetUp();
+    void TearDown();
+};
+
+void DevicedebugKillTest::SetUpTestCase()
+{
+    GTEST_LOG_(INFO) << "Devicedebug_Kill_TEST SetUpTestCase";
+}
+
+void DevicedebugKillTest::TearDownTestCase()
+{
+    GTEST_LOG_(INFO) << "Devicedebug_Kill_TEST TearDownTestCase";
+}
+
+void DevicedebugKillTest::SetUp()
+{
+    GTEST_LOG_(INFO) << "Devicedebug_Kill_TEST SetUp";
+}
+
+void DevicedebugKillTest::TearDown()
+{
+    GTEST_LOG_(INFO) << "Devicedebug_Kill_TEST TearDown";
+}
+
+/**
+* @tc.name: DevicedebugCmdKill_001
+* @tc.desc:  Verify develop mode and argc validate.
+* @tc.type: FUNC
+* @tc.require:issueIASN4F
+* @tc.author:
+*/
+HWTEST_F(DevicedebugKillTest, DevicedebugCmdKill_001, TestSize.Level0)
+{
+    GTEST_LOG_(INFO) << "DevicedebugCmdKill_001 test....";
+    {
+        int argc = 3;
+        char argv0[] = "devicedebug";
+        char argv1[] = "kill";
+        char argv2[] = "-9";
+        char* argv[] = {argv0, argv1, argv2};
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), DEVICEDEBUG_ERRNO_NOT_IN_DEVELOPER_MODE);
+        DeveloperModeOpenSet(1);
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), DEVICEDEBUG_ERRNO_OPERATOR_ARGV_MISS);
+    }
+    {
+        int argc = 2;
+        char argv0[] = "devicedebug";
+        char argv1[] = "-h";
+        char* argv[] = {argv0, argv1};
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), 0);
+    }
+    {
+        DeveloperModeOpenSet(1);
+        int argc = 3;
+        char argv0[] = "devicedebug";
+        char argv1[] = "kill";
+        char argv2[] = "-9";
+        char* argv[] = {argv0, argv1, argv2};
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), DEVICEDEBUG_ERRNO_OPERATOR_ARGV_MISS);
+    }
+}
+
+/**
+* @tc.name: DevicedebugCmdKill_002
+* @tc.desc:  Verify signal validate.
+* @tc.type: FUNC
+* @tc.require:issueIASN4F
+* @tc.author:
+*/
+HWTEST_F(DevicedebugKillTest, DevicedebugCmdKill_002, TestSize.Level0)
+{
+    GTEST_LOG_(INFO) << "DevicedebugCmdKill_002 test....";
+
+    DeveloperModeOpenSet(1);
+    {
+        int argc = 4;
+        char argv0[] = "devicedebug";
+        char argv1[] = "kill";
+        char argv2[] = "-0";
+        char argv3[] = "12111";
+        char* argv[] = {argv0, argv1, argv2, argv3};
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), DEVICEDEBUG_ERRNO_PARAM_INVALID);
+    }
+    {
+        int argc = 4;
+        char argv0[] = "devicedebug";
+        char argv1[] = "kill";
+        char argv2[] = "-65";
+        char argv3[] = "12111";
+        char* argv[] = {argv0, argv1, argv2, argv3};
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), DEVICEDEBUG_ERRNO_PARAM_INVALID);
+    }
+}
+
+/**
+* @tc.name: DevicedebugCmdKill_003
+* @tc.desc:  Verify devicedebug kill success.
+* @tc.type: FUNC
+* @tc.require:issueIASN4F
+* @tc.author:
+*/
+HWTEST_F(DevicedebugKillTest, DevicedebugCmdKill_003, TestSize.Level0)
+{
+    GTEST_LOG_(INFO) << "DevicedebugCmdKill_003 test....";
+
+    DeveloperModeOpenSet(1);
+    int argc = 4;
+    char argv0[] = "devicedebug";
+    char argv1[] = "kill";
+    char argv2[] = "-9";
+    char argv3[] = "12111";
+    char* argv[] = {argv0, argv1, argv2, argv3};
+    {
+        AppSpawnClientInitRetSet(-1);
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), -1);
+    }
+    AppSpawnClientInitRetSet(0);
+    {
+        AppSpawnReqMsgCreateRetSet(-2);
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), -2);
+    }
+    AppSpawnReqMsgCreateRetSet(0);
+    {
+        AppSpawnReqMsgAddExtInfoRetSet(-3);
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), -3);
+    }
+    AppSpawnReqMsgAddExtInfoRetSet(0);
+    {
+        AppSpawnClientSendMsgRetSet(-4);
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), -4);
+    }
+    AppSpawnClientSendMsgRetSet(0);
+    {
+        AppSpawnClientSendMsgResultSet(-5);
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), -5);
+    }
+    AppSpawnClientSendMsgResultSet(0);
+    {
+        EXPECT_EQ(DeviceDebugCmdKill(argc, argv), 0);
+    }
+}
+
+}
\ No newline at end of file
diff --git a/test/unittest/devicedebug_test/devicedebug_stub.c b/test/unittest/devicedebug_test/devicedebug_stub.c
new file mode 100644
index 00000000..4fd342ae
--- /dev/null
+++ b/test/unittest/devicedebug_test/devicedebug_stub.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "devicedebug_stub.h"
+
+#include "appspawn.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int g_isDeveloperModeOpen = 0;
+
+void DeveloperModeOpenSet(int developerMode)
+{
+    g_isDeveloperModeOpen = developerMode;
+}
+
+int IsDeveloperModeOpenStub()
+{
+    return g_isDeveloperModeOpen;
+}
+
+int g_appSpawnClientInitRet = 0;
+
+void AppSpawnClientInitRetSet(int appSpawnClientInitRet)
+{
+    g_appSpawnClientInitRet = appSpawnClientInitRet;
+}
+
+int AppSpawnClientInitStub(const char *serviceName, AppSpawnClientHandle *handle)
+{
+    (void)serviceName;
+    (void)handle;
+
+    return g_appSpawnClientInitRet;
+}
+
+int g_appSpawnReqMsgCreateRet = 0;
+
+void AppSpawnReqMsgCreateRetSet(int appSpawnReqMsgCreateRet)
+{
+    g_appSpawnReqMsgCreateRet = appSpawnReqMsgCreateRet;
+}
+
+int AppSpawnReqMsgCreateStub(AppSpawnMsgType msgType, const char *processName, AppSpawnReqMsgHandle *reqHandle)
+{
+    (void)msgType;
+    (void)processName;
+    (void)reqHandle;
+
+    return g_appSpawnReqMsgCreateRet;
+}
+
+int g_appSpawnReqMsgAddExtInfoRet = 0;
+
+void AppSpawnReqMsgAddExtInfoRetSet(int appSpawnReqMsgAddExtInfoRet)
+{
+    g_appSpawnReqMsgAddExtInfoRet = appSpawnReqMsgAddExtInfoRet;
+}
+
+int AppSpawnReqMsgAddExtInfoStub(AppSpawnReqMsgHandle reqHandle, const char *name, const uint8_t *value,
+    uint32_t valueLen)
+{
+    (void)reqHandle;
+    (void)name;
+    (void)value;
+    (void)valueLen;
+
+    return g_appSpawnReqMsgAddExtInfoRet;
+}
+
+int g_appSpawnClientSendMsgResulte = 0;
+int g_appSpawnClientSendMsgRet = 0;
+
+void AppSpawnClientSendMsgResultSet(int appSpawnClientSendMsgResult)
+{
+    g_appSpawnClientSendMsgResulte = appSpawnClientSendMsgResult;
+}
+
+void AppSpawnClientSendMsgRetSet(int appSpawnClientSendMsgRet)
+{
+    g_appSpawnClientSendMsgRet = appSpawnClientSendMsgRet;
+}
+
+int AppSpawnClientSendMsgStub(AppSpawnClientHandle handle, AppSpawnReqMsgHandle reqHandle, AppSpawnResult *result)
+{
+    (void)handle;
+    (void)reqHandle;
+    result->result = g_appSpawnClientSendMsgResulte;
+
+    return g_appSpawnClientSendMsgRet;
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/test/unittest/devicedebug_test/devicedebug_stub.h b/test/unittest/devicedebug_test/devicedebug_stub.h
new file mode 100644
index 00000000..5bda5bd3
--- /dev/null
+++ b/test/unittest/devicedebug_test/devicedebug_stub.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DEVICEDEBUG_STUB_H
+#define DEVICEDEBUG_STUB_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void DeveloperModeOpenSet(int developerMode);
+
+void AppSpawnClientInitRetSet(int appSpawnClientInitRet);
+
+void AppSpawnReqMsgCreateRetSet(int appSpawnClientSendMsgRet);
+
+void AppSpawnReqMsgAddExtInfoRetSet(int appSpawnReqMsgAddExtInfoRet);
+
+void AppSpawnClientSendMsgResultSet(int appSpawnClientSendMsgResult);
+
+void AppSpawnClientSendMsgRetSet(int appSpawnClientSendMsgRet);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
\ No newline at end of file