diff --git a/bundle.json b/bundle.json
index fcd77c3..3cedd46 100644
--- a/bundle.json
+++ b/bundle.json
@@ -52,7 +52,8 @@
                 "//foundation/distributedhardware/distributedscreen/services/screentransport/screensourcetrans:distributed_screen_sourcetrans",
                 "//foundation/distributedhardware/distributedscreen/services/screenservice/sinkservice:distributed_screen_sink",
                 "//foundation/distributedhardware/distributedscreen/services/screenservice/sourceservice:distributed_screen_source",
-                "//foundation/distributedhardware/distributedscreen/sa_profile:dscreen_sa_profile"
+                "//foundation/distributedhardware/distributedscreen/sa_profile:dscreen_sa_profile",
+                "//foundation/distributedhardware/distributedscreen/sa_profile:dscreen.cfg"
             ],
             "inner_kits":[
                 {
diff --git a/common/include/dscreen_constants.h b/common/include/dscreen_constants.h
index cce75aa..c4b08a4 100644
--- a/common/include/dscreen_constants.h
+++ b/common/include/dscreen_constants.h
@@ -58,7 +58,7 @@ enum VideoFormat : uint8_t {
 };
 
 /* Screen package name */
-const std::string PKG_NAME = "ohos.dhardware";
+const std::string PKG_NAME = "ohos.dhardware.dscreen";
 
 /* Screen data session name */
 const std::string DATA_SESSION_NAME = "ohos.dhardware.dscreen.data";
@@ -125,6 +125,7 @@ constexpr int32_t DISTRIBUTED_HARDWARE_SCREEN_SOURCE_SA_ID = 4807;
 constexpr int32_t DISTRIBUTED_HARDWARE_SCREEN_SINK_SA_ID = 4808;
 constexpr uint64_t SCREEN_ID_INVALID = -1ULL;
 constexpr uint64_t SCREEN_ID_DEFAULT = 0;
+constexpr int32_t SCREEN_LOADSA_TIMEOUT_MS = 10000;
 } // namespace DistributedHardware
 } // namespace OHOS
 #endif
\ No newline at end of file
diff --git a/common/include/dscreen_errcode.h b/common/include/dscreen_errcode.h
index a6101bb..987e919 100644
--- a/common/include/dscreen_errcode.h
+++ b/common/include/dscreen_errcode.h
@@ -53,6 +53,7 @@ enum DScreenErrorCode {
     ERR_DH_SCREEN_SA_REGISTER_SCREENLISTENER_FAIL = -500029,
     ERR_DH_SCREEN_SA_UNREGISTER_SCREENLISTENER_FAIL = -500030,
     ERR_DH_SCREEN_SA_DSCREEN_NEGOTIATE_CODEC_FAIL = -500031,
+    ERR_DH_SCREEN_SA_LOAD_TIMEOUT = -500032,
     // Transport component error code
     ERR_DH_SCREEN_TRANS_ERROR = -51000,
     ERR_DH_SCREEN_TRANS_TIMEOUT = -51001,
diff --git a/interfaces/innerkits/native_cpp/screen_sink/BUILD.gn b/interfaces/innerkits/native_cpp/screen_sink/BUILD.gn
index bcbb3e9..adc10a5 100644
--- a/interfaces/innerkits/native_cpp/screen_sink/BUILD.gn
+++ b/interfaces/innerkits/native_cpp/screen_sink/BUILD.gn
@@ -13,43 +13,46 @@
 
 import("//build/ohos.gni")
 import("//build/ohos_var.gni")
-import("//foundation/distributedhardware/distributedscreen/distributedscreen.gni")
+import(
+    "//foundation/distributedhardware/distributedscreen/distributedscreen.gni")
 
 ohos_shared_library("distributed_screen_sink_sdk") {
-    include_dirs = [
-        "//utils/system/safwk/native/include",
-        "${fwk_common_path}/utils/include",
-    ]
+  include_dirs = [
+    "//utils/system/safwk/native/include",
+    "${fwk_common_path}/utils/include",
+  ]
 
-    include_dirs += [
-        "include",
-        "${common_path}/include",
-    ]
+  include_dirs += [
+    "include",
+    "include/callback",
+    "${common_path}/include",
+  ]
 
-    sources = [
-        "src/dscreen_sink_handler.cpp",
-        "src/dscreen_sink_proxy.cpp",
-    ]
+  sources = [
+    "src/callback/dscreen_sink_load_callback.cpp",
+    "src/dscreen_sink_handler.cpp",
+    "src/dscreen_sink_proxy.cpp",
+  ]
 
-    deps = [
-        "//utils/native/base:utils",
-        "${common_path}:distributed_screen_utils",
-    ]
+  deps = [
+    "${common_path}:distributed_screen_utils",
+    "//utils/native/base:utils",
+  ]
 
-    defines = [
-        "HI_LOG_ENABLE",
-        "DH_LOG_TAG=\"dscreensinksdk\"",
-        "LOG_DOMAIN=0xD004100",
-    ]
+  defines = [
+    "HI_LOG_ENABLE",
+    "DH_LOG_TAG=\"dscreensinksdk\"",
+    "LOG_DOMAIN=0xD004100",
+  ]
 
-    external_deps = [
-        "hiviewdfx_hilog_native:libhilog",
-        "ipc:ipc_core",
-        "safwk:system_ability_fwk",
-        "samgr_standard:samgr_proxy",
-    ]
+  external_deps = [
+    "hiviewdfx_hilog_native:libhilog",
+    "ipc:ipc_core",
+    "safwk:system_ability_fwk",
+    "samgr_standard:samgr_proxy",
+  ]
 
-    subsystem_name = "distributedhardware"
+  subsystem_name = "distributedhardware"
 
-    part_name = "distributed_screen"
-}
\ No newline at end of file
+  part_name = "distributed_screen"
+}
diff --git a/interfaces/innerkits/native_cpp/screen_sink/include/callback/dscreen_sink_load_callback.h b/interfaces/innerkits/native_cpp/screen_sink/include/callback/dscreen_sink_load_callback.h
new file mode 100644
index 0000000..9249672
--- /dev/null
+++ b/interfaces/innerkits/native_cpp/screen_sink/include/callback/dscreen_sink_load_callback.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 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.
+ */
+
+#ifndef OHOS_DSCREEN_SINK_LOAD_CALLBACK_H
+#define OHOS_DSCREEN_SINK_LOAD_CALLBACK_H
+
+#include "system_ability_load_callback_stub.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+class DScreenSinkLoadCallback : public SystemAbilityLoadCallbackStub {
+public:
+    explicit DScreenSinkLoadCallback(const std::string &params);
+    void OnLoadSystemAbilitySuccess(int32_t systemAbilityId,
+        const sptr<IRemoteObject> &remoteObject) override;
+    void OnLoadSystemAbilityFail(int32_t systemAbilityId) override;
+private:
+    std::string params_;
+};
+}
+}
+#endif
\ No newline at end of file
diff --git a/interfaces/innerkits/native_cpp/screen_sink/include/dscreen_sink_handler.h b/interfaces/innerkits/native_cpp/screen_sink/include/dscreen_sink_handler.h
index 152884d..400e510 100644
--- a/interfaces/innerkits/native_cpp/screen_sink/include/dscreen_sink_handler.h
+++ b/interfaces/innerkits/native_cpp/screen_sink/include/dscreen_sink_handler.h
@@ -16,6 +16,7 @@
 #ifndef OHOS_DSCREEN_SINK_HANDLER_H
 #define OHOS_DSCREEN_SINK_HANDLER_H
 
+#include <condition_variable>
 #include <mutex>
 
 #include "idistributed_hardware_sink.h"
@@ -33,6 +34,7 @@ public:
     int32_t SubscribeLocalHardware(const std::string &dhId, const std::string &param) override;
     int32_t UnsubscribeLocalHardware(const std::string &dhId) override;
     void OnRemoteSinkSvrDied(const wptr<IRemoteObject> &remote);
+    void FinishStartSA(const std::string &params, const sptr<IRemoteObject> &remoteObject);
 private:
     class DScreenSinkSvrRecipient : public IRemoteObject::DeathRecipient {
     public:
@@ -42,7 +44,8 @@ private:
     DScreenSinkHandler();
     ~DScreenSinkHandler();
 
-    std::mutex mutex_;
+    std::mutex proxyMutex_;
+    std::condition_variable proxyConVar_;
     sptr<IDScreenSink> dScreenSinkProxy_ = nullptr;
     sptr<DScreenSinkSvrRecipient> sinkSvrRecipient_ = nullptr;
 };
diff --git a/interfaces/innerkits/native_cpp/screen_sink/src/callback/dscreen_sink_load_callback.cpp b/interfaces/innerkits/native_cpp/screen_sink/src/callback/dscreen_sink_load_callback.cpp
new file mode 100644
index 0000000..2911bce
--- /dev/null
+++ b/interfaces/innerkits/native_cpp/screen_sink/src/callback/dscreen_sink_load_callback.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 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.
+ */
+#include "dscreen_sink_load_callback.h"
+
+#include "dscreen_log.h"
+#include "dscreen_sink_handler.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+DScreenSinkLoadCallback::DScreenSinkLoadCallback(
+    const std::string &params) : params_(params) {}
+
+void DScreenSinkLoadCallback::OnLoadSystemAbilitySuccess(
+    int32_t systemAbilityId, const sptr<IRemoteObject> &remoteObject)
+{
+    DHLOGI("load screen SA success, systemAbilityId:%d, remoteObject result:%s",
+        systemAbilityId, (remoteObject != nullptr) ? "true" : "false");
+    if (remoteObject == nullptr) {
+        DHLOGE("remoteObject is nullptr");
+        return;
+    }
+
+    DScreenSinkHandler::GetInstance().FinishStartSA(params_, remoteObject);
+}
+
+void DScreenSinkLoadCallback::OnLoadSystemAbilityFail(int32_t systemAbilityId)
+{
+    DHLOGE("load screen SA failed, systemAbilityId:%d", systemAbilityId);
+}
+}
+}
\ No newline at end of file
diff --git a/interfaces/innerkits/native_cpp/screen_sink/src/dscreen_sink_handler.cpp b/interfaces/innerkits/native_cpp/screen_sink/src/dscreen_sink_handler.cpp
index d672bcb..4039067 100644
--- a/interfaces/innerkits/native_cpp/screen_sink/src/dscreen_sink_handler.cpp
+++ b/interfaces/innerkits/native_cpp/screen_sink/src/dscreen_sink_handler.cpp
@@ -21,6 +21,7 @@
 #include "dscreen_constants.h"
 #include "dscreen_errcode.h"
 #include "dscreen_log.h"
+#include "dscreen_sink_load_callback.h"
 
 namespace OHOS {
 namespace DistributedHardware {
@@ -29,7 +30,7 @@ IMPLEMENT_SINGLE_INSTANCE(DScreenSinkHandler);
 DScreenSinkHandler::DScreenSinkHandler()
 {
     DHLOGI("DScreenSinkHandler construct.");
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (!sinkSvrRecipient_) {
         sinkSvrRecipient_ = new DScreenSinkSvrRecipient();
     }
@@ -43,49 +44,65 @@ DScreenSinkHandler::~DScreenSinkHandler()
 int32_t DScreenSinkHandler::InitSink(const std::string &params)
 {
     DHLOGD("InitSink");
-    std::lock_guard<std::mutex> lock(mutex_);
-
     if (!dScreenSinkProxy_) {
-        sptr<ISystemAbilityManager> samgr =
-                SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
+        sptr<ISystemAbilityManager> samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
         if (!samgr) {
             DHLOGE("Failed to get system ability mgr.");
             return ERR_DH_SCREEN_SA_GET_SAMGR_FAIL;
         }
-        sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(DISTRIBUTED_HARDWARE_SCREEN_SINK_SA_ID);
-        if (!remoteObject) {
-            DHLOGE("Failed to get dscreen sink service.");
-            return ERR_DH_SCREEN_SA_GET_SINKSERVICE_FAIL;
-        }
-
-        remoteObject->AddDeathRecipient(sinkSvrRecipient_);
-        dScreenSinkProxy_ = iface_cast<IDScreenSink>(remoteObject);
-        if ((!dScreenSinkProxy_) || (!dScreenSinkProxy_->AsObject())) {
-            DHLOGE("Failed to get dscreen sink proxy.");
+        sptr<DScreenSinkLoadCallback> loadCallback = new DScreenSinkLoadCallback(params);
+        int32_t ret = samgr->LoadSystemAbility(DISTRIBUTED_HARDWARE_SCREEN_SINK_SA_ID, loadCallback);
+        if (ret != ERR_OK) {
+            DHLOGE("Failed to Load systemAbility, systemAbilityId:%d, ret code:%d",
+                DISTRIBUTED_HARDWARE_SCREEN_SINK_SA_ID, ret);
             return ERR_DH_SCREEN_SA_GET_SINKPROXY_FAIL;
         }
     }
-    int32_t ret = dScreenSinkProxy_->InitSink(params);
-    return ret;
+
+    std::unique_lock<std::mutex> lock(proxyMutex_);
+    auto waitStatus = proxyConVar_.wait_for(lock, std::chrono::milliseconds(SCREEN_LOADSA_TIMEOUT_MS),
+        [this]() { return dScreenSinkProxy_ != nullptr; });
+    if (!waitStatus) {
+        DHLOGE("screen load sa timeout");
+        return ERR_DH_SCREEN_SA_LOAD_TIMEOUT;
+    }
+
+    return DH_SUCCESS;
+}
+
+void DScreenSinkHandler::FinishStartSA(const std::string &params,
+    const sptr<IRemoteObject> &remoteObject)
+{
+    DHLOGD("FinishStartSA");
+    std::lock_guard<std::mutex> lock(proxyMutex_);
+    remoteObject->AddDeathRecipient(sinkSvrRecipient_);
+    dScreenSinkProxy_ = iface_cast<IDScreenSink>(remoteObject);
+    if ((!dScreenSinkProxy_) || (!dScreenSinkProxy_->AsObject())) {
+        DHLOGE("Failed to get dscreen sink proxy.");
+        return;
+    }
+    dScreenSinkProxy_->InitSink(params);
+    proxyConVar_.notify_one();
 }
 
 int32_t DScreenSinkHandler::ReleaseSink()
 {
     DHLOGD("ReleaseSink");
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (!dScreenSinkProxy_) {
         DHLOGE("screen sink proxy not init.");
         return ERR_DH_SCREEN_SA_SINKPROXY_NOT_INIT;
     }
 
     int32_t ret = dScreenSinkProxy_->ReleaseSink();
+    dScreenSinkProxy_ = nullptr;
     return ret;
 }
 
 int32_t DScreenSinkHandler::SubscribeLocalHardware(const std::string &dhId, const std::string &param)
 {
     DHLOGD("SubscribeLocalHardware");
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (!dScreenSinkProxy_) {
         DHLOGE("screen sink proxy not init.");
         return ERR_DH_SCREEN_SA_SINKPROXY_NOT_INIT;
@@ -97,7 +114,7 @@ int32_t DScreenSinkHandler::SubscribeLocalHardware(const std::string &dhId, cons
 int32_t DScreenSinkHandler::UnsubscribeLocalHardware(const std::string &dhId)
 {
     DHLOGD("UnsubscribeLocalHardware");
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (!dScreenSinkProxy_) {
         DHLOGE("screen sink proxy not init.");
         return ERR_DH_SCREEN_SA_SINKPROXY_NOT_INIT;
@@ -120,7 +137,7 @@ void DScreenSinkHandler::OnRemoteSinkSvrDied(const wptr<IRemoteObject> &remote)
         DHLOGE("OnRemoteDied remote promoted failed");
         return;
     }
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (dScreenSinkProxy_ != nullptr) {
         dScreenSinkProxy_->AsObject()->RemoveDeathRecipient(sinkSvrRecipient_);
         dScreenSinkProxy_ = nullptr;
diff --git a/interfaces/innerkits/native_cpp/screen_source/BUILD.gn b/interfaces/innerkits/native_cpp/screen_source/BUILD.gn
index fec9182..565bc5e 100644
--- a/interfaces/innerkits/native_cpp/screen_source/BUILD.gn
+++ b/interfaces/innerkits/native_cpp/screen_source/BUILD.gn
@@ -13,46 +13,48 @@
 
 import("//build/ohos.gni")
 import("//build/ohos_var.gni")
-import("//foundation/distributedhardware/distributedscreen/distributedscreen.gni")
+import(
+    "//foundation/distributedhardware/distributedscreen/distributedscreen.gni")
 
 ohos_shared_library("distributed_screen_source_sdk") {
-    include_dirs = [
-        "//utils/system/safwk/native/include",
-        "${fwk_common_path}/utils/include",
-    ]
+  include_dirs = [
+    "//utils/system/safwk/native/include",
+    "${fwk_common_path}/utils/include",
+  ]
 
-    include_dirs += [
-        "include",
-        "include/callback",
-        "${common_path}/include",
-    ]
+  include_dirs += [
+    "include",
+    "include/callback",
+    "${common_path}/include",
+  ]
 
-    sources = [
-        "src/dscreen_source_handler.cpp",
-        "src/dscreen_source_proxy.cpp",
-        "src/callback/dscreen_source_callback_stub.cpp",
-        "src/callback/dscreen_source_callback.cpp",
-    ]
+  sources = [
+    "src/callback/dscreen_source_callback.cpp",
+    "src/callback/dscreen_source_callback_stub.cpp",
+    "src/callback/dscreen_source_load_callback.cpp",
+    "src/dscreen_source_handler.cpp",
+    "src/dscreen_source_proxy.cpp",
+  ]
 
-    deps = [
-        "//utils/native/base:utils",
-        "${common_path}:distributed_screen_utils",
-    ]
+  deps = [
+    "${common_path}:distributed_screen_utils",
+    "//utils/native/base:utils",
+  ]
 
-    defines = [
-        "HI_LOG_ENABLE",
-        "DH_LOG_TAG=\"dscreensourcesdk\"",
-        "LOG_DOMAIN=0xD004100",
-    ]
+  defines = [
+    "HI_LOG_ENABLE",
+    "DH_LOG_TAG=\"dscreensourcesdk\"",
+    "LOG_DOMAIN=0xD004100",
+  ]
 
-    external_deps = [
-        "hiviewdfx_hilog_native:libhilog",
-        "ipc:ipc_core",
-        "safwk:system_ability_fwk",
-        "samgr_standard:samgr_proxy",
-    ]
+  external_deps = [
+    "hiviewdfx_hilog_native:libhilog",
+    "ipc:ipc_core",
+    "safwk:system_ability_fwk",
+    "samgr_standard:samgr_proxy",
+  ]
 
-    subsystem_name = "distributedhardware"
+  subsystem_name = "distributedhardware"
 
-    part_name = "distributed_screen"
-}
\ No newline at end of file
+  part_name = "distributed_screen"
+}
diff --git a/interfaces/innerkits/native_cpp/screen_source/include/callback/dscreen_source_load_callback.h b/interfaces/innerkits/native_cpp/screen_source/include/callback/dscreen_source_load_callback.h
new file mode 100644
index 0000000..17688f1
--- /dev/null
+++ b/interfaces/innerkits/native_cpp/screen_source/include/callback/dscreen_source_load_callback.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 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.
+ */
+
+#ifndef OHOS_DSCREEN_SOURCE_LOAD_CALLBACK_H
+#define OHOS_DSCREEN_SOURCE_LOAD_CALLBACK_H
+
+#include "system_ability_load_callback_stub.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+class DScreenSourceLoadCallback : public SystemAbilityLoadCallbackStub {
+public:
+    explicit DScreenSourceLoadCallback(const std::string &params);
+    void OnLoadSystemAbilitySuccess(int32_t systemAbilityId,
+        const sptr<IRemoteObject> &remoteObject) override;
+    void OnLoadSystemAbilityFail(int32_t systemAbilityId) override;
+private:
+    std::string params_;
+};
+}
+}
+#endif
\ No newline at end of file
diff --git a/interfaces/innerkits/native_cpp/screen_source/include/dscreen_source_handler.h b/interfaces/innerkits/native_cpp/screen_source/include/dscreen_source_handler.h
index 0ee40a0..a602ab6 100644
--- a/interfaces/innerkits/native_cpp/screen_source/include/dscreen_source_handler.h
+++ b/interfaces/innerkits/native_cpp/screen_source/include/dscreen_source_handler.h
@@ -16,6 +16,7 @@
 #ifndef OHOS_DSCREEN_SOURCE_HANDLER_H
 #define OHOS_DSCREEN_SOURCE_HANDLER_H
 
+#include <condition_variable>
 #include <mutex>
 
 #include "dscreen_source_callback.h"
@@ -37,6 +38,7 @@ public:
     int32_t ConfigDistributedHardware(const std::string &devId, const std::string &dhId,
         const std::string &key, const std::string &value) override;
     void OnRemoteSourceSvrDied(const wptr<IRemoteObject> &remote);
+    void FinishStartSA(const std::string &params, const sptr<IRemoteObject> &remoteObject);
 private:
     class DScreenSourceSvrRecipient : public IRemoteObject::DeathRecipient {
     public:
@@ -46,7 +48,8 @@ private:
     DScreenSourceHandler();
     ~DScreenSourceHandler();
 
-    std::mutex mutex_;
+    std::mutex proxyMutex_;
+    std::condition_variable proxyConVar_;
     sptr<IDScreenSource> dScreenSourceProxy_ = nullptr;
     sptr<DScreenSourceCallback> dScreenSourceCallback_ = nullptr;
     sptr<DScreenSourceSvrRecipient> sourceSvrRecipient_ = nullptr;
diff --git a/interfaces/innerkits/native_cpp/screen_source/src/callback/dscreen_source_callback_stub.cpp b/interfaces/innerkits/native_cpp/screen_source/src/callback/dscreen_source_callback_stub.cpp
index 08f9ce8..c9ac9a5 100644
--- a/interfaces/innerkits/native_cpp/screen_source/src/callback/dscreen_source_callback_stub.cpp
+++ b/interfaces/innerkits/native_cpp/screen_source/src/callback/dscreen_source_callback_stub.cpp
@@ -33,6 +33,14 @@ DScreenSourceCallbackStub::~DScreenSourceCallbackStub()
 int32_t DScreenSourceCallbackStub::OnRemoteRequest(uint32_t code, MessageParcel &data,
     MessageParcel &reply, MessageOption &option)
 {
+    DHLOGI("OnRemoteRequest, code: %d", code);
+    std::u16string desc = DScreenSourceCallbackStub::GetDescriptor();
+    std::u16string remoteDesc = data.ReadInterfaceToken();
+    if (desc != remoteDesc) {
+        DHLOGE("DScreenSourceCallbackStub::OnRemoteRequest remoteDesc is invalid!");
+        return ERR_INVALID_DATA;
+    }
+
     std::map<int32_t, DScreenFunc>::iterator iter = memberFuncMap_.find(code);
     if (iter == memberFuncMap_.end()) {
         DHLOGE("invalid request code.");
diff --git a/interfaces/innerkits/native_cpp/screen_source/src/callback/dscreen_source_load_callback.cpp b/interfaces/innerkits/native_cpp/screen_source/src/callback/dscreen_source_load_callback.cpp
new file mode 100644
index 0000000..9c7cdcb
--- /dev/null
+++ b/interfaces/innerkits/native_cpp/screen_source/src/callback/dscreen_source_load_callback.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 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.
+ */
+#include "dscreen_source_load_callback.h"
+
+#include "dscreen_log.h"
+#include "dscreen_source_handler.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+DScreenSourceLoadCallback::DScreenSourceLoadCallback(
+    const std::string &params) : params_(params) {}
+
+void DScreenSourceLoadCallback::OnLoadSystemAbilitySuccess(
+    int32_t systemAbilityId, const sptr<IRemoteObject> &remoteObject)
+{
+    DHLOGI("load screen SA success, systemAbilityId:%d, remoteObject result:%s",
+        systemAbilityId, (remoteObject != nullptr) ? "true" : "false");
+    if (remoteObject == nullptr) {
+        DHLOGE("remoteObject is nullptr");
+        return;
+    }
+	
+    DScreenSourceHandler::GetInstance().FinishStartSA(params_, remoteObject);
+}
+
+void DScreenSourceLoadCallback::OnLoadSystemAbilityFail(int32_t systemAbilityId)
+{
+    DHLOGE("load screen SA failed, systemAbilityId:%d", systemAbilityId);
+}
+}
+}
diff --git a/interfaces/innerkits/native_cpp/screen_source/src/dscreen_source_handler.cpp b/interfaces/innerkits/native_cpp/screen_source/src/dscreen_source_handler.cpp
index 55adeeb..a45b050 100644
--- a/interfaces/innerkits/native_cpp/screen_source/src/dscreen_source_handler.cpp
+++ b/interfaces/innerkits/native_cpp/screen_source/src/dscreen_source_handler.cpp
@@ -21,6 +21,7 @@
 #include "dscreen_constants.h"
 #include "dscreen_errcode.h"
 #include "dscreen_log.h"
+#include "dscreen_source_load_callback.h"
 #include "dscreen_util.h"
 
 namespace OHOS {
@@ -30,7 +31,7 @@ IMPLEMENT_SINGLE_INSTANCE(DScreenSourceHandler);
 DScreenSourceHandler::DScreenSourceHandler()
 {
     DHLOGI("DScreenSourceHandler construct.");
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (!sourceSvrRecipient_) {
         sourceSvrRecipient_ = new DScreenSourceSvrRecipient();
     }
@@ -48,42 +49,58 @@ DScreenSourceHandler::~DScreenSourceHandler()
 int32_t DScreenSourceHandler::InitSource(const std::string &params)
 {
     DHLOGD("InitSource");
-    std::lock_guard<std::mutex> lock(mutex_);
 
     if (!dScreenSourceProxy_) {
-        sptr<ISystemAbilityManager> samgr =
-                SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
+        sptr<ISystemAbilityManager> samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
         if (!samgr) {
             DHLOGE("Failed to get system ability mgr.");
             return ERR_DH_SCREEN_SA_GET_SAMGR_FAIL;
         }
-        sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(DISTRIBUTED_HARDWARE_SCREEN_SOURCE_SA_ID);
-        if (!remoteObject) {
-            DHLOGE("Failed to get dscreen source service.");
-            return ERR_DH_SCREEN_SA_GET_SOURCESERVICE_FAIL;
-        }
-
-        remoteObject->AddDeathRecipient(sourceSvrRecipient_);
-        dScreenSourceProxy_ = iface_cast<IDScreenSource>(remoteObject);
-        if ((!dScreenSourceProxy_) || (!dScreenSourceProxy_->AsObject())) {
-            DHLOGE("Failed to get dscreen source proxy.");
+        sptr<DScreenSourceLoadCallback> loadCallback = new DScreenSourceLoadCallback(params);
+        int32_t ret = samgr->LoadSystemAbility(DISTRIBUTED_HARDWARE_SCREEN_SOURCE_SA_ID, loadCallback);
+        if (ret != ERR_OK) {
+            DHLOGE("Failed to Load systemAbility, systemAbilityId:%d, ret code:%d",
+                DISTRIBUTED_HARDWARE_SCREEN_SOURCE_SA_ID, ret);
             return ERR_DH_SCREEN_SA_GET_SOURCEPROXY_FAIL;
         }
     }
 
-    int32_t ret = dScreenSourceProxy_->InitSource(params, dScreenSourceCallback_);
-    return ret;
+    std::unique_lock<std::mutex> lock(proxyMutex_);
+    auto waitStatus = proxyConVar_.wait_for(lock, std::chrono::milliseconds(SCREEN_LOADSA_TIMEOUT_MS),
+        [this]() { return (dScreenSourceProxy_ != nullptr); });
+    if (!waitStatus) {
+        DHLOGE("screen load sa timeout.");
+        return ERR_DH_SCREEN_SA_LOAD_TIMEOUT;
+    }
+
+    return DH_SUCCESS;
+}
+
+void DScreenSourceHandler::FinishStartSA(const std::string &params,
+    const sptr<IRemoteObject> &remoteObject)
+{
+    DHLOGD("FinishStartSA");
+    std::lock_guard<std::mutex> lock(proxyMutex_);
+    remoteObject->AddDeathRecipient(sourceSvrRecipient_);
+    dScreenSourceProxy_ = iface_cast<IDScreenSource>(remoteObject);
+    if ((!dScreenSourceProxy_) || (!dScreenSourceProxy_->AsObject())) {
+        DHLOGE("Failed to get dscreen source proxy.");
+        return;
+    }
+    dScreenSourceProxy_->InitSource(params, dScreenSourceCallback_);
+    proxyConVar_.notify_one();
 }
 
 int32_t DScreenSourceHandler::ReleaseSource()
 {
     DHLOGD("ReleaseSource");
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (!dScreenSourceProxy_) {
         DHLOGE("screen source proxy not init.");
         return ERR_DH_SCREEN_SA_SOURCEPROXY_NOT_INIT;
     }
     int32_t ret = dScreenSourceProxy_->ReleaseSource();
+    dScreenSourceProxy_ = nullptr;
     return ret;
 }
 
@@ -92,7 +109,7 @@ int32_t DScreenSourceHandler::RegisterDistributedHardware(const std::string &dev
 {
     DHLOGD("RegisterDistributedHardware, devId: %s, dhId: %s", GetAnonyString(devId).c_str(),
         GetAnonyString(dhId).c_str());
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (!dScreenSourceProxy_) {
         DHLOGE("screen source proxy not init.");
         return ERR_DH_SCREEN_SA_SOURCEPROXY_NOT_INIT;
@@ -113,7 +130,7 @@ int32_t DScreenSourceHandler::UnregisterDistributedHardware(const std::string &d
 {
     DHLOGD("UnregisterDistributedHardware, devId: %s, dhId: %s", GetAnonyString(devId).c_str(),
         GetAnonyString(dhId).c_str());
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (!dScreenSourceProxy_) {
         DHLOGE("screen source proxy not init.");
         return ERR_DH_SCREEN_SA_SOURCEPROXY_NOT_INIT;
@@ -150,7 +167,7 @@ void DScreenSourceHandler::OnRemoteSourceSvrDied(const wptr<IRemoteObject> &remo
         DHLOGE("OnRemoteDied remote promoted failed");
         return;
     }
-    std::lock_guard<std::mutex> lock(mutex_);
+    std::lock_guard<std::mutex> lock(proxyMutex_);
     if (dScreenSourceProxy_ != nullptr) {
         dScreenSourceProxy_->AsObject()->RemoveDeathRecipient(sourceSvrRecipient_);
         dScreenSourceProxy_ = nullptr;
diff --git a/sa_profile/4807.xml b/sa_profile/4807.xml
index f3f552e..6cc4818 100644
--- a/sa_profile/4807.xml
+++ b/sa_profile/4807.xml
@@ -14,13 +14,13 @@
  * limitations under the License.
  -->
 <info>
-    <process>dhardware</process>
+    <process>dscreen</process>
     <systemability> <!-- Declare a sytem ability and its profile -->
         <name>4807</name> <!-- Declare the name of system ability -->
         <libpath>libdistributed_screen_source.z.so</libpath> <!-- Declare the path of .so file which includes the system ability; Note: 1 .so file can have 1 to N system abilities. -->
         <!--<depend></depend> --> <!-- Declare the name of system abilities which the system ability depends on, using ";" as separator among names. If there are dependencies, it needs to check if all those dependencies are avliable in service manager before starting the system ability. -->
         <!--<depend-time-out></depend-time-out> --> <!-- Check all dependencies are avaliable before the timeout period ended. The MAX_DEPENDENCY_TIMEOUT is 60s. -->
-        <run-on-create>true</run-on-create> <!-- "true" means the system ability would start imediately, "false" means the system ability would start on demand. -->
+        <run-on-create>false</run-on-create> <!-- "true" means the system ability would start imediately, "false" means the system ability would start on demand. -->
         <distributed>true</distributed> <!-- "true" means the system ability supports distributed scheduling while "false" is not. -->
         <dump-level>1</dump-level> <!-- Declare the dump level. 1-high; 2-media; 3-low -->
     </systemability>
diff --git a/sa_profile/4808.xml b/sa_profile/4808.xml
index 6ec95fd..6b16479 100644
--- a/sa_profile/4808.xml
+++ b/sa_profile/4808.xml
@@ -14,13 +14,13 @@
  * limitations under the License.
  -->
 <info>
-    <process>dhardware</process>
+    <process>dscreen</process>
     <systemability> <!-- Declare a sytem ability and its profile -->
         <name>4808</name> <!-- Declare the name of system ability -->
         <libpath>libdistributed_screen_sink.z.so</libpath> <!-- Declare the path of .so file which includes the system ability; Note: 1 .so file can have 1 to N system abilities. -->
         <!--<depend></depend> --> <!-- Declare the name of system abilities which the system ability depends on, using ";" as separator among names. If there are dependencies, it needs to check if all those dependencies are avliable in service manager before starting the system ability. -->
         <!--<depend-time-out></depend-time-out> --> <!-- Check all dependencies are avaliable before the timeout period ended. The MAX_DEPENDENCY_TIMEOUT is 60s. -->
-        <run-on-create>true</run-on-create> <!-- "true" means the system ability would start imediately, "false" means the system ability would start on demand. -->
+        <run-on-create>false</run-on-create> <!-- "true" means the system ability would start imediately, "false" means the system ability would start on demand. -->
         <distributed>true</distributed> <!-- "true" means the system ability supports distributed scheduling while "false" is not. -->
         <dump-level>1</dump-level> <!-- Declare the dump level. 1-high; 2-media; 3-low -->
     </systemability>
diff --git a/sa_profile/BUILD.gn b/sa_profile/BUILD.gn
index 6b167fb..8d64abb 100644
--- a/sa_profile/BUILD.gn
+++ b/sa_profile/BUILD.gn
@@ -11,7 +11,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import("//build/ohos/sa_profile/sa_profile.gni")
+import("//build/ohos.gni")
 
 ohos_sa_profile("dscreen_sa_profile") {
   sources = [
@@ -20,4 +20,11 @@ ohos_sa_profile("dscreen_sa_profile") {
   ]
 
   part_name = "distributed_screen"
-}
\ No newline at end of file
+}
+
+ohos_prebuilt_etc("dscreen.cfg") {
+  relative_install_dir = "init"
+  source = "dscreen.cfg"
+  part_name = "distributed_screen"
+  subsystem_name = "distributedhardware"
+}
diff --git a/sa_profile/dscreen.cfg b/sa_profile/dscreen.cfg
new file mode 100644
index 0000000..f623798
--- /dev/null
+++ b/sa_profile/dscreen.cfg
@@ -0,0 +1,9 @@
+{
+    "services" : [{
+        "name" : "dscreen",
+        "path" : ["/system/bin/sa_main", "/system/profile/dscreen.xml"],
+        "uid" : "system",
+        "gid" : ["system"],
+        "ondemand" : true
+    }]
+}
\ No newline at end of file
diff --git a/services/screenservice/sinkservice/BUILD.gn b/services/screenservice/sinkservice/BUILD.gn
index 0564cbd..1b85c0e 100644
--- a/services/screenservice/sinkservice/BUILD.gn
+++ b/services/screenservice/sinkservice/BUILD.gn
@@ -13,70 +13,71 @@
 
 import("//build/ohos.gni")
 import("//build/ohos_var.gni")
-import("//foundation/distributedhardware/distributedscreen/distributedscreen.gni")
+import(
+    "//foundation/distributedhardware/distributedscreen/distributedscreen.gni")
 
 ohos_shared_library("distributed_screen_sink") {
-    include_dirs = [
-        "//third_party/json/include",
-        "//utils/native/base/include",
-        "//utils/system/safwk/native/include",
-        "//foundation/graphic/standard/interfaces/innerkits/surface",
-        "${windowmanager_path}/interfaces/innerkits/dm",
-        "${fwk_common_path}/utils/include",
-    ]
+  include_dirs = [
+    "//third_party/json/include",
+    "//utils/native/base/include",
+    "//utils/system/safwk/native/include",
+    "//foundation/graphic/standard/interfaces/innerkits/surface",
+    "${windowmanager_path}/interfaces/innerkits/dm",
+    "${fwk_common_path}/utils/include",
+  ]
 
-    include_dirs += [
-        "./dscreenservice/include",
-        "./screenregionmgr/include",
-        "${interfaces_path}/innerkits/native_cpp/screen_sink/include",
-        "${interfaces_path}/innerkits/native_cpp/screen_sink/include/callback",
-        "${interfaces_path}/innerkits/native_cpp/screen_source/include",
-        "${interfaces_path}/innerkits/native_cpp/screen_source/include/callback",
-        "${common_path}/include",
-        "${services_path}/common/utils/include",
-        "${services_path}/common/databuffer/include",
-        "${services_path}/common/screen_channel/include",
-        "${services_path}/screentransport/screensinktrans/include",
-        "${services_path}/screentransport/screensinkprocessor/include",
-        "${services_path}/screentransport/screensinkprocessor/decoder/include",
-        "${services_path}/screenclient/include/",
-    ]
+  include_dirs += [
+    "./dscreenservice/include",
+    "./screenregionmgr/include",
+    "${interfaces_path}/innerkits/native_cpp/screen_sink/include",
+    "${interfaces_path}/innerkits/native_cpp/screen_sink/include/callback",
+    "${interfaces_path}/innerkits/native_cpp/screen_source/include",
+    "${interfaces_path}/innerkits/native_cpp/screen_source/include/callback",
+    "${common_path}/include",
+    "${services_path}/common/utils/include",
+    "${services_path}/common/databuffer/include",
+    "${services_path}/common/screen_channel/include",
+    "${services_path}/screentransport/screensinktrans/include",
+    "${services_path}/screentransport/screensinkprocessor/include",
+    "${services_path}/screentransport/screensinkprocessor/decoder/include",
+    "${services_path}/screenclient/include/",
+  ]
 
-    sources = [
-        "${services_path}/common/utils/src/dscreen_maprelation.cpp",
-        "${services_path}/common/utils/src/video_param.cpp",
-        "${interfaces_path}/innerkits/native_cpp/screen_sink/src/dscreen_sink_proxy.cpp",
-        "${interfaces_path}/innerkits/native_cpp/screen_source/src/dscreen_source_proxy.cpp",
-        "./dscreenservice/src/dscreen_sink_service.cpp",
-        "./dscreenservice/src/dscreen_sink_stub.cpp",
-        "./screenregionmgr/src/screenregion.cpp",
-        "./screenregionmgr/src/screenregionmgr.cpp",
-    ]
+  sources = [
+    "${interfaces_path}/innerkits/native_cpp/screen_sink/src/dscreen_sink_proxy.cpp",
+    "${interfaces_path}/innerkits/native_cpp/screen_source/src/dscreen_source_proxy.cpp",
+    "${services_path}/common/utils/src/dscreen_maprelation.cpp",
+    "${services_path}/common/utils/src/video_param.cpp",
+    "./dscreenservice/src/dscreen_sink_service.cpp",
+    "./dscreenservice/src/dscreen_sink_stub.cpp",
+    "./screenregionmgr/src/screenregion.cpp",
+    "./screenregionmgr/src/screenregionmgr.cpp",
+  ]
 
-    deps = [
-        "//utils/native/base:utils",
-        "${common_path}:distributed_screen_utils",
-        "${services_path}/screentransport/screensinktrans:distributed_screen_sinktrans",
-        "${services_path}/screenclient:distributed_screen_client",
-        "//foundation/graphic/standard/frameworks/surface:surface",
-        "${windowmanager_path}/dm:libdm",
-    ]
+  deps = [
+    "${common_path}:distributed_screen_utils",
+    "${services_path}/screenclient:distributed_screen_client",
+    "${services_path}/screentransport/screensinktrans:distributed_screen_sinktrans",
+    "${windowmanager_path}/dm:libdm",
+    "//foundation/graphic/standard/frameworks/surface:surface",
+    "//utils/native/base:utils",
+  ]
 
-    defines = [
-        "HI_LOG_ENABLE",
-        "DH_LOG_TAG=\"dscreensink\"",
-        "LOG_DOMAIN=0xD004100",
-    ]
+  defines = [
+    "HI_LOG_ENABLE",
+    "DH_LOG_TAG=\"dscreensink\"",
+    "LOG_DOMAIN=0xD004100",
+  ]
 
-    external_deps = [
-        "hiviewdfx_hilog_native:libhilog",
-        "ipc:ipc_core",
-        "safwk:system_ability_fwk",
-        "samgr_standard:samgr_proxy",
-        "multimedia_media_standard:media_client",
-    ]
+  external_deps = [
+    "hiviewdfx_hilog_native:libhilog",
+    "ipc:ipc_core",
+    "multimedia_media_standard:media_client",
+    "safwk:system_ability_fwk",
+    "samgr_standard:samgr_proxy",
+  ]
 
-    subsystem_name = "distributedhardware"
+  subsystem_name = "distributedhardware"
 
-    part_name = "distributed_screen"
-}
\ No newline at end of file
+  part_name = "distributed_screen"
+}
diff --git a/services/screenservice/sinkservice/dscreenservice/src/dscreen_sink_service.cpp b/services/screenservice/sinkservice/dscreenservice/src/dscreen_sink_service.cpp
index 643b415..020ce95 100644
--- a/services/screenservice/sinkservice/dscreenservice/src/dscreen_sink_service.cpp
+++ b/services/screenservice/sinkservice/dscreenservice/src/dscreen_sink_service.cpp
@@ -76,7 +76,10 @@ int32_t DScreenSinkService::InitSink(const std::string &params)
 int32_t DScreenSinkService::ReleaseSink()
 {
     DHLOGI("ReleaseSink");
-    return ScreenRegionManager::GetInstance().ReleaseAllRegions();
+    ScreenRegionManager::GetInstance().ReleaseAllRegions();
+    DHLOGI("exit sink sa process");
+    exit(0);
+    return DH_SUCCESS;
 }
 
 int32_t DScreenSinkService::SubscribeLocalHardware(const std::string &dhId, const std::string &param)
diff --git a/services/screenservice/sourceservice/dscreenservice/src/dscreen_source_service.cpp b/services/screenservice/sourceservice/dscreenservice/src/dscreen_source_service.cpp
index e1cb0ef..3a7c561 100644
--- a/services/screenservice/sourceservice/dscreenservice/src/dscreen_source_service.cpp
+++ b/services/screenservice/sourceservice/dscreenservice/src/dscreen_source_service.cpp
@@ -93,6 +93,8 @@ int32_t DScreenSourceService::ReleaseSource()
         DHLOGE("UnInit DScreenManager failed. err: %d", ret);
         return ret;
     }
+    DHLOGI("exit source sa process");
+    exit(0);
     return DH_SUCCESS;
 }
 
diff --git a/services/softbusadapter/src/softbus_adapter.cpp b/services/softbusadapter/src/softbus_adapter.cpp
index 540590b..29a1378 100644
--- a/services/softbusadapter/src/softbus_adapter.cpp
+++ b/services/softbusadapter/src/softbus_adapter.cpp
@@ -133,6 +133,12 @@ int32_t SoftbusAdapter::RemoveSoftbusSessionServer(const std::string &pkgname, c
         return ERR_DH_SCREEN_TRANS_ILLEGAL_OPERATION;
     }
 
+    int32_t ret = RemoveSessionServer(pkgname.c_str(), sessionName.c_str());
+    if (ret != DH_SUCCESS) {
+        DHLOGE("%s: RemoveSessionServer failed.", LOG_TAG);
+        return ret;
+    }
+
     mapSessionSet_[sessionName].erase(peerDevId);
     if (mapSessionSet_[sessionName].empty()) {
         mapSessionSet_.erase(sessionName);