diff --git a/tests/core/bus_center/lnn/BUILD.gn b/tests/core/bus_center/lnn/BUILD.gn
index d5b8512c74..c1e73ad73b 100644
--- a/tests/core/bus_center/lnn/BUILD.gn
+++ b/tests/core/bus_center/lnn/BUILD.gn
@@ -19,6 +19,8 @@ module_output_path = "dsoftbus/LNN"
 ohos_unittest("LNNTest") {
   module_out_path = module_output_path
   sources = [
+    "ipc/bus_center_client_proxy_standard_test.cpp",
+    "ipc/lnn_bus_center_ipc_test.cpp",
     "net_builder/lnn_connection_fsm_test.cpp",
     "net_builder/lnn_network_info_test.cpp",
     "net_builder/lnn_node_weight_test.cpp",
@@ -46,13 +48,18 @@ ohos_unittest("LNNTest") {
     "$dsoftbus_root_path/core/authentication/interface",
     "$dsoftbus_root_path/core/bus_center/interface",
     "$dsoftbus_root_path/core/bus_center/utils/include",
+    "$dsoftbus_root_path/core/bus_center/ipc/standard/include",
+    "$dsoftbus_root_path/core/bus_center/lnn/lane_hub/time_sync/include",
+    "$dsoftbus_root_path/core/bus_center/ipc/include",
     "$dsoftbus_root_path/interfaces/kits/bus_center",
     "$dsoftbus_root_path/interfaces/kits/common",
     "$dsoftbus_root_path/core/adapter/bus_center/include",
+    "$dsoftbus_root_path/sdk/frame/standard/include",
     "//commonlibrary/c_utils/base/include",
     "//third_party/cJSON",
     "unittest/common/",
     "$dsoftbus_root_path/core/connection/manager",
+    "$dsoftbus_root_path/core/frame/standard/client_manager/include",
     "$dsoftbus_root_path/adapter/common/bus_center/include/",
     "$dsoftbus_root_path/core/discovery/manager/include",
     "$dsoftbus_root_path/core/discovery/interface",
@@ -65,6 +72,7 @@ ohos_unittest("LNNTest") {
     "$dsoftbus_root_path/core/common:softbus_utils",
     "$dsoftbus_root_path/core/frame:softbus_server",
     "//base/security/device_auth/services:deviceauth_sdk",
+    "//foundation/communication/ipc/interfaces/innerkits/ipc_core:ipc_core",
     "//third_party/googletest:gtest_main",
   ]
 
diff --git a/tests/core/bus_center/lnn/ipc/bus_center_client_proxy_standard_test.cpp b/tests/core/bus_center/lnn/ipc/bus_center_client_proxy_standard_test.cpp
new file mode 100644
index 0000000000..f7180bb3a5
--- /dev/null
+++ b/tests/core/bus_center/lnn/ipc/bus_center_client_proxy_standard_test.cpp
@@ -0,0 +1,133 @@
+/*
+* Copyright (c) 2021 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 <securec.h>
+#include <cstring>
+#include <mutex>
+#include <vector>
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <cstdint>
+#include <cstdlib>
+#include <string>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <cerrno>
+#include "bus_center_client_proxy_standard.h"
+#include "bus_center_client_proxy.h"
+#include "auth_interface.h"
+#include "bus_center_info_key.h"
+#include "bus_center_manager.h"
+#include "lnn_connection_addr_utils.h"
+#include "lnn_network_manager.h"
+#include "lnn_distributed_net_ledger.h"
+#include "lnn_event_monitor.h"
+#include "lnn_local_net_ledger.h"
+#include "lnn_sync_item_info.h"
+#include "softbus_bus_center.h"
+#include "softbus_conn_interface.h"
+#include "lnn_ipc_utils.h"
+#include "lnn_meta_node_ledger.h"
+#include "lnn_time_sync_manager.h"
+#include "softbus_def.h"
+#include "softbus_client_info_manager.h"
+#include "softbus_errcode.h"
+#include "softbus_ipc_def.h"
+#include "softbus_log.h"
+#include "message_parcel.h"
+#include "softbus_permission.h"
+#include "lnn_bus_center_ipc.h"
+
+namespace OHOS {
+using namespace testing::ext;
+    static sptr<BusCenterClientProxy> GetClientProxy(const char *pkgName)
+    {
+        sptr<IRemoteObject> clientObject = SoftbusClientInfoManager::GetInstance().GetSoftbusClientProxy(pkgName);
+        sptr<BusCenterClientProxy> clientProxy = new (std::nothrow) BusCenterClientProxy(clientObject);
+        return clientProxy;
+    }
+    
+    class BusCenterClientProxyStandardTest : public testing::Test {
+    public:
+        static void SetUpTestCase();
+        static void TearDownTestCase();
+        void SetUp();
+        void TearDown();
+    };
+
+    void BusCenterClientProxyStandardTest::SetUpTestCase()
+    {
+    }
+
+    void BusCenterClientProxyStandardTest::TearDownTestCase()
+    {
+    }
+
+    void BusCenterClientProxyStandardTest::SetUp()
+    {
+    }
+
+    void BusCenterClientProxyStandardTest::TearDown()
+    {
+    }
+
+    /*
+    * @tc.name: ON_JOIN_META_NODE_RESULT_Test_001
+    * @tc.desc: On Join Meta Node Result test
+    * @tc.type: FUNC
+    * @tc.require:
+    */
+    HWTEST_F(BusCenterClientProxyStandardTest, ON_JOIN_META_NODE_RESULT_Test_001, TestSize.Level0)
+    {
+        void *addr = nullptr;
+        uint32_t addrTypeLen = 0;
+        ConnectionAddr addrValue;
+        (void)memset_s(&addrValue, sizeof(ConnectionAddr), 0, sizeof(ConnectionAddr));
+        char *networkId = nullptr;
+        char networkIdValue[] = "12345";
+        int32_t retCode = 0;
+        char pkgNameValue[] = "test";
+        sptr<BusCenterClientProxy> clientProxy =  GetClientProxy(pkgNameValue);
+        int32_t ret = clientProxy->BusCenterClientProxy::OnJoinMetaNodeResult(addr, addrTypeLen, networkId, retCode);
+        EXPECT_EQ(ret, SOFTBUS_ERR);
+        retCode = 1;
+        ret = clientProxy->BusCenterClientProxy::OnJoinMetaNodeResult(addr, addrTypeLen, networkIdValue, retCode);
+        EXPECT_TRUE(ret == SOFTBUS_ERR);
+        ret = clientProxy->BusCenterClientProxy::OnJoinMetaNodeResult(&addrValue, addrTypeLen, networkIdValue, retCode);
+        EXPECT_TRUE(ret == SOFTBUS_ERR);
+    }
+
+    /*
+    * @tc.name: ON_LEAVE_META_NODE_RESULT_Test_001
+    * @tc.desc: On Leave Meta Node Result test
+    * @tc.type: FUNC
+    * @tc.require:
+    */
+    HWTEST_F(BusCenterClientProxyStandardTest, ON_LEAVE_META_NODE_RESULT_Test_001, TestSize.Level0)
+    {
+        char *networkId = nullptr;
+        char pkgNameValue[] = "test";
+        char networkIdValue[] = "12345";
+        int32_t retCode = 0;
+        sptr<BusCenterClientProxy> clientProxy = GetClientProxy(pkgNameValue);
+        int32_t ret = clientProxy->BusCenterClientProxy::OnLeaveMetaNodeResult(networkId, retCode);
+        EXPECT_TRUE(ret == SOFTBUS_ERR);
+        ret = clientProxy->BusCenterClientProxy::OnLeaveMetaNodeResult(networkIdValue, retCode);
+        EXPECT_TRUE(ret == SOFTBUS_ERR);
+    }
+} // namespace OHOS
diff --git a/tests/core/bus_center/lnn/ipc/lnn_bus_center_ipc_test.cpp b/tests/core/bus_center/lnn/ipc/lnn_bus_center_ipc_test.cpp
new file mode 100644
index 0000000000..9cd679ba9c
--- /dev/null
+++ b/tests/core/bus_center/lnn/ipc/lnn_bus_center_ipc_test.cpp
@@ -0,0 +1,192 @@
+/*
+ * 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 <gtest/gtest.h>
+#include <securec.h>
+#include <cstring>
+#include <mutex>
+#include <vector>
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <cstdint>
+#include <cstdlib>
+#include <string>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <cerrno>
+#include "auth_interface.h"
+#include "bus_center_info_key.h"
+#include "bus_center_manager.h"
+#include "lnn_connection_addr_utils.h"
+#include "lnn_network_manager.h"
+#include "lnn_distributed_net_ledger.h"
+#include "lnn_event_monitor.h"
+#include "lnn_local_net_ledger.h"
+#include "lnn_sync_item_info.h"
+#include "softbus_bus_center.h"
+#include "softbus_conn_interface.h"
+#include "lnn_ipc_utils.h"
+#include "lnn_meta_node_ledger.h"
+#include "lnn_time_sync_manager.h"
+#include "softbus_def.h"
+#include "softbus_errcode.h"
+#include "softbus_log.h"
+#include "softbus_permission.h"
+#include "lnn_bus_center_ipc.h"
+
+namespace OHOS {
+using namespace testing::ext;
+    constexpr uint8_t DEFAULT_LEN = 32;
+    constexpr uint8_t DEFAULT_SIZE = 5;
+    constexpr uint8_t DEFAULT_TIME = 2;
+    static int InitServer()
+    {
+        if (ConnServerInit() == SOFTBUS_ERR) {
+            printf("softbus conn server init failed.");
+            return SOFTBUS_ERR;
+        }
+        if (AuthInit() == SOFTBUS_ERR) {
+            printf("softbus auth init failed.");
+            return SOFTBUS_ERR;
+        }
+        if (LnnInitLocalLedger() != SOFTBUS_OK) {
+            printf("init local net ledger fail!");
+            return SOFTBUS_ERR;
+        }
+        if (LnnInitDistributedLedger() != SOFTBUS_OK) {
+            printf("init distributed net ledger fail!");
+            return SOFTBUS_ERR;
+        }
+        if (LnnInitEventMonitor() != SOFTBUS_OK) {
+            printf("init event monitor failed");
+            return SOFTBUS_ERR;
+        }
+        if (LnnInitNetworkManager() != SOFTBUS_OK) {
+            printf("init lnn network manager fail!");
+            return SOFTBUS_ERR;
+        }
+        return SOFTBUS_OK;
+    }
+
+    class LnnBusCenterIpcTest : public testing::Test {
+    public:
+        static void SetUpTestCase();
+        static void TearDownTestCase();
+        void SetUp();
+        void TearDown();
+    };
+
+    void LnnBusCenterIpcTest::SetUpTestCase()
+    {
+        EXPECT_TRUE(InitServer() == SOFTBUS_OK);
+        sleep(DEFAULT_TIME);
+    }
+
+    void LnnBusCenterIpcTest::TearDownTestCase()
+    {
+    }
+
+    void LnnBusCenterIpcTest::SetUp()
+    {
+    }
+
+    void LnnBusCenterIpcTest::TearDown()
+    {
+    }
+
+    /*
+    * @tc.name: META_NODE_IPC_SERVER_JOIN_Test_001
+    * @tc.desc: Meta Node Ipc Server Join test
+    * @tc.type: FUNC
+    * @tc.require:
+    */
+    HWTEST_F(LnnBusCenterIpcTest, META_NODE_IPC_SERVER_JOIN_Test_001, TestSize.Level0)
+    {
+        char *pkgName = nullptr;
+        void *addr = nullptr;
+        CustomData dataKey;
+        memcpy_s(dataKey.data, sizeof(CustomData), "test", DEFAULT_SIZE);
+        uint32_t addrTypeLen = 0;
+        ConnectionAddr addrValue;
+        (void)memset_s(&addrValue, sizeof(ConnectionAddr), 0, sizeof(ConnectionAddr));
+        char pkgNameValue[DEFAULT_LEN] = "test";
+        int32_t ret = MetaNodeIpcServerJoin(pkgName, addr, &dataKey, addrTypeLen);
+        EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+        ret = MetaNodeIpcServerJoin(pkgNameValue, (void *)&addrValue, &dataKey, addrTypeLen);
+        EXPECT_TRUE(ret == SOFTBUS_NO_INIT);
+    }
+
+    /*
+    * @tc.name: META_NODE_IPC_SERVER_LEAVE_Test_001
+    * @tc.desc: Meta Node Ipc Server Leave test
+    * @tc.type: FUNC
+    * @tc.require:
+    */
+    HWTEST_F(LnnBusCenterIpcTest, META_NODE_IPC_SERVER_LEAVE_Test_001, TestSize.Level0)
+    {
+        char *pkgName = nullptr;
+        char *networkId = nullptr;
+        char pkgNameValue[DEFAULT_LEN] = "test";
+        char networkIdValue[DEFAULT_LEN] = "12345";
+        int32_t ret = MetaNodeIpcServerLeave(pkgName, networkId);
+        EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+        ret = MetaNodeIpcServerLeave(pkgNameValue, networkId);
+        EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+        ret = MetaNodeIpcServerLeave(pkgNameValue, networkIdValue);
+        EXPECT_TRUE(ret == SOFTBUS_NO_INIT);
+    }
+
+    /*
+    * @tc.name: META_NODE_IPC_NOTIFY_JOIN_RESULT_Test_001
+    * @tc.desc: Meta Node Ipc Notify Join Result test
+    * @tc.type: FUNC
+    * @tc.require:
+    */
+    HWTEST_F(LnnBusCenterIpcTest, META_NODE_IPC_NOTIFY_JOIN_RESULT_Test_001, TestSize.Level0)
+    {
+        void *addr = nullptr;
+        uint32_t addrTypeLen = 0;
+        ConnectionAddr addrValue;
+        (void)memset_s(&addrValue, sizeof(ConnectionAddr), 0, sizeof(ConnectionAddr));
+        char *networkId = nullptr;
+        char networkIdValue[DEFAULT_LEN] = "1234";
+        int32_t retCode = 0;
+        CustomData dataKey;
+        memcpy_s(dataKey.data, sizeof(CustomData), "test", DEFAULT_SIZE);
+        int32_t ret = MetaNodeIpcNotifyJoinResult(addr, addrTypeLen, networkId, retCode);
+        EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+        ret = MetaNodeIpcNotifyJoinResult((void *)&addrValue, addrTypeLen, networkIdValue, retCode);
+        EXPECT_TRUE(ret == SOFTBUS_OK);
+    }
+
+    /*
+    * @tc.name: META_NODE_IPC_NOTIFY_LEAVE_RESULT_Test_001
+    * @tc.desc: Meta Node Ipc Notify Leave Result test
+    * @tc.type: FUNC
+    * @tc.require:
+    */
+    HWTEST_F(LnnBusCenterIpcTest, META_NODE_IPC_NOTIFY_LEAVE_RESULT_Test_001, TestSize.Level0)
+    {
+        char *networkId = nullptr;
+        char networkIdValue[DEFAULT_LEN] = "12345";
+        int32_t retCode = 0;
+        int32_t ret = MetaNodeIpcNotifyLeaveResult(networkId, retCode);
+        EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+        ret = MetaNodeIpcNotifyLeaveResult(networkIdValue, retCode);
+        EXPECT_TRUE(ret == SOFTBUS_OK);
+    }
+} // namespace OHOS
diff --git a/tests/sdk/bus_center/unittest/BUILD.gn b/tests/sdk/bus_center/unittest/BUILD.gn
index 3dbbae2f65..03acddfdc7 100644
--- a/tests/sdk/bus_center/unittest/BUILD.gn
+++ b/tests/sdk/bus_center/unittest/BUILD.gn
@@ -29,6 +29,7 @@ bus_center_sdk_test_inc = [
   "$dsoftbus_root_path/tests/sdk/common/include",
   "//commonlibrary/c_utils/base/include",
   "//third_party/bounds_checking_function/include",
+  "$dsoftbus_root_path/sdk/bus_center/manager/include",
 ]
 bus_center_sdk_test_deps = [
   "$dsoftbus_root_path/core/frame:softbus_server",
diff --git a/tests/sdk/bus_center/unittest/bus_center_sdk_test.cpp b/tests/sdk/bus_center/unittest/bus_center_sdk_test.cpp
index a7130f7a22..46272ea59b 100644
--- a/tests/sdk/bus_center/unittest/bus_center_sdk_test.cpp
+++ b/tests/sdk/bus_center/unittest/bus_center_sdk_test.cpp
@@ -22,6 +22,7 @@
 #include "softbus_def.h"
 #include "softbus_errcode.h"
 #include "softbus_utils.h"
+#include "client_bus_center_manager.h"
 
 namespace OHOS {
 using namespace testing::ext;
@@ -500,4 +501,94 @@ HWTEST_F(BusCenterSdkTest, RefreshLNNTest002, TestSize.Level0)
     ret = StopRefreshLNN(TEST_PKG_NAME_1, tmpId3);
     EXPECT_TRUE(ret == 0);
 }
+
+/**
+* @tc.name: SET_NODE_DATA_CHANGE_FLAG_INNER_Test001
+* @tc.desc: Set Node Data Change Flag Inner
+* @tc.type: FUNC
+* @tc.require:
+*/
+HWTEST_F(BusCenterSdkTest, SET_NODE_DATA_CHANGE_FLAG_INNER_Test001, TestSize.Level0)
+{
+    char pkgName[] = "test";
+    char *networkId = nullptr;
+    uint16_t dataChangeFlag = 0;
+    int32_t ret = SetNodeDataChangeFlagInner(pkgName, networkId, dataChangeFlag);
+    EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+}
+
+/*
+* @tc.name: JOIN_META_NODE_INNER_Test001
+* @tc.desc: JoinMetaNodeInner
+* @tc.type: FUNC
+* @tc.require:
+*/
+HWTEST_F(BusCenterSdkTest, JOIN_META_NODE_INNER_Test001, TestSize.Level1)
+{
+    char pkgName[] = "test";
+    CustomData dataKey;
+    (void)memset_s(&dataKey, sizeof(CustomData), 0, sizeof(CustomData));
+    OnJoinMetaNodeResult cb = nullptr;
+    ConnectionAddr *target = nullptr;
+    int32_t ret = JoinMetaNodeInner(pkgName, target, &dataKey, cb);
+    EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+}
+
+/*
+* @tc.name: LEAVE_META_NODE_INNER_Test001
+* @tc.desc: Leave Meta Node Inner
+* @tc.type: FUNC
+* @tc.require:
+*/
+HWTEST_F(BusCenterSdkTest, LEAVE_META_NODE_INNER_Test001, TestSize.Level1)
+{
+    char pkgName[] = "test";
+    char networkId[] = "0123456789";
+    char *networkId1 = nullptr;
+    OnLeaveMetaNodeResult cb = nullptr;
+    int32_t  ret = LeaveMetaNodeInner(pkgName, networkId1, cb);
+    EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+    printf("LeaveMetaNodeInner ret2 = %d\n", ret);
+    ret = LeaveMetaNodeInner(pkgName, networkId, cb);
+    EXPECT_TRUE(ret == SOFTBUS_OK);
+    printf("LeaveMetaNodeInner ret3 = %d\n", ret);
+}
+
+/*
+* @tc.name: META_NODE_ON_JOIN_RESULT_Test001
+* @tc.desc: Meta Node On Join Result
+* @tc.type: FUNC
+* @tc.require:
+*/
+HWTEST_F(BusCenterSdkTest, META_NODE_ON_JOIN_RESULT_Test001, TestSize.Level1)
+{
+    void *addr = nullptr;
+    char networkId[] = "0123456789";
+    int32_t retCode = SOFTBUS_OK;
+    int32_t ret = MetaNodeOnJoinResult(addr, networkId, retCode);
+    EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+    ConnectionAddr connAddr;
+    (void)memset_s(&connAddr, sizeof(ConnectionAddr), 0, sizeof(ConnectionAddr));
+    addr = (void*)&connAddr;
+    ret = MetaNodeOnJoinResult(addr, networkId, retCode);
+    EXPECT_TRUE(ret == SOFTBUS_OK);
+}
+
+/*
+* @tc.name: META_NODE_ON_LEAVE_RESULT_Test001
+* @tc.desc: Meta Node On Leave Result
+* @tc.type: FUNC
+* @tc.require:
+*/
+HWTEST_F(BusCenterSdkTest, META_NODE_ON_LEAVE_RESULT_Test001, TestSize.Level1)
+{
+    int32_t retCode = SOFTBUS_OK;
+    char networkId[] = "ABCDEFG";
+    char *networkId1 = nullptr;
+    int32_t ret = MetaNodeOnLeaveResult(networkId1, retCode);
+    EXPECT_TRUE(ret == SOFTBUS_INVALID_PARAM);
+    ret = MetaNodeOnLeaveResult(networkId, retCode);
+    EXPECT_TRUE(ret == SOFTBUS_OK);
+}
+
 } // namespace OHOS
diff --git a/tests/sdk/bus_center/unittest/softbus_center_sdk_test.cpp b/tests/sdk/bus_center/unittest/softbus_center_sdk_test.cpp
old mode 100755
new mode 100644