diff --git a/README_zh.md b/README_zh.md
index f00ba01c13cb9bab8a486b5de02df823acc02e57..0a16f17ce9639b0883afaf465a76728d897f4565 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -1,8 +1,13 @@
-# samgr组件<a name="ZH-CN_TOPIC_0000001162068341"></a>
+# 系统服务管理部件<a name="ZH-CN_TOPIC_0000001162068341"></a>
 ## 简介<a name="section11660541593"></a>
 
 samgr组件是OpenHarmony的核心组件，提供OpenHarmony系统服务启动、注册、查询等功能。
 
+## 系统架构<a name="section342962219551"></a>
+
+**图 1**  系统服务管理系统架构图
+
+
 ![](figures/zh-cn_image_0000001115820566.png)
 
 ## 目录<a name="section161941989596"></a>
diff --git a/figures/en-us_image_0000001115820566.png b/figures/en-us_image_0000001115820566.png
index 5565883f26bdc780a78ab7b1b6f6fb799525f704..826d579fdce32aa57080e14141153f7dda7035f7 100644
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diff --git a/figures/zh-cn_image_0000001115820566.png b/figures/zh-cn_image_0000001115820566.png
index c40b07116c06dd275da47df579d8664c6bd52abc..eb084e6dc92931583b1cee2b6b504dad9e9e5d9b 100644
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diff --git a/services/samgr/native/test/unittest/src/system_ability_mgr_stub_test.cpp b/services/samgr/native/test/unittest/src/system_ability_mgr_stub_test.cpp
index 681a412f9fa727ba8210a84329d0253fac9fa632..e8ebcd4f4ca1e1e4bf8090fd9bf3a72f2249d050 100644
--- a/services/samgr/native/test/unittest/src/system_ability_mgr_stub_test.cpp
+++ b/services/samgr/native/test/unittest/src/system_ability_mgr_stub_test.cpp
@@ -911,4 +911,236 @@ HWTEST_F(SystemAbilityMgrStubTest, LoadRemoteSystemAbilityInner004, TestSize.Lev
     int32_t result = saMgr->LoadRemoteSystemAbilityInner(data, reply);
     EXPECT_EQ(result, ERR_OK);
 }
-}
\ No newline at end of file
+
+/**
+ * @tc.name: Init001
+ * @tc.desc: test Init!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, Init001, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    saMgr->workHandler_ = nullptr;
+    saMgr->Init();
+    EXPECT_NE(saMgr, nullptr);
+}
+
+/**
+ * @tc.name: Init002
+ * @tc.desc: test Init!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, Init002, TestSize.Level1)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    auto runner = AppExecFwk::EventRunner::Create("workHandler");
+    saMgr->workHandler_ = make_shared<AppExecFwk::EventHandler>(runner);
+    saMgr->Init();
+    EXPECT_NE(saMgr, nullptr);
+}
+
+/**
+ * @tc.name: InitSaProfile001
+ * @tc.desc: test InitSaProfile! InitSaProfile.
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, InitSaProfile001, TestSize.Level1)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    auto runner = AppExecFwk::EventRunner::Create("workHandler");
+    saMgr->workHandler_ = make_shared<AppExecFwk::EventHandler>(runner);
+    saMgr->InitSaProfile();
+    EXPECT_NE(saMgr->workHandler_, nullptr);
+}
+
+/**
+ * @tc.name: InitSaProfile002
+ * @tc.desc: test InitSaProfile! parseHandler_ not init!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, InitSaProfile002, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    saMgr->workHandler_ = nullptr;
+    saMgr->InitSaProfile();
+    EXPECT_EQ(saMgr->workHandler_, nullptr);
+}
+
+/**
+ * @tc.name: GetSaProfile001
+ * @tc.desc: test GetSaProfile! return true
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, GetSaProfile001, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    SaProfile saProfilein;
+    SaProfile SaProfileout;
+    saMgr->saProfileMap_[SAID] = saProfilein;
+    bool res = saMgr->GetSaProfile(SAID, SaProfileout);
+    EXPECT_EQ(res, true);
+}
+
+/**
+ * @tc.name: GetSystemAbility001
+ * @tc.desc: test GetSystemAbility! return nullptr
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, GetSystemAbility001, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    sptr<IRemoteObject> res = saMgr->GetSystemAbility(INVALID_SAID);
+    EXPECT_EQ(res, nullptr);
+}
+
+/**
+ * @tc.name: GetSystemAbility002
+ * @tc.desc: test GetSystemAbility! return nullptr
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, GetSystemAbility002, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    string deviceId = "test";
+    sptr<IRemoteObject> res = saMgr->GetSystemAbility(SAID, deviceId);
+    EXPECT_EQ(res, nullptr);
+}
+
+/**
+ * @tc.name: GetSystemAbilityFromRemote001
+ * @tc.desc: test GetSystemAbilityFromRemote! GetSystemAbilityFromRemote invalid!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, GetSystemAbilityFromRemote001, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    sptr<IRemoteObject> res = saMgr->GetSystemAbilityFromRemote(INVALID_SAID);
+    EXPECT_EQ(res, nullptr);
+}
+
+/**
+ * @tc.name: GetSystemAbilityFromRemote002
+ * @tc.desc: test GetSystemAbilityFromRemote! not found service!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, GetSystemAbilityFromRemote002, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    sptr<IRemoteObject> res = saMgr->GetSystemAbilityFromRemote(SAID);
+    EXPECT_EQ(res, nullptr);
+}
+
+/**
+ * @tc.name: GetSystemAbilityFromRemote003
+ * @tc.desc: test GetSystemAbilityFromRemote! service not distributed!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, GetSystemAbilityFromRemote003, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    SAInfo saInfo;
+    saInfo.isDistributed = false;
+    saMgr->abilityMap_[SAID] = saInfo;
+    sptr<IRemoteObject> res = saMgr->GetSystemAbilityFromRemote(SAID);
+    EXPECT_EQ(res, nullptr);
+}
+
+/**
+ * @tc.name: GetSystemAbilityFromRemote004
+ * @tc.desc: test GetSystemAbilityFromRemote! GetSystemAbilityFromRemote found service!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, GetSystemAbilityFromRemote004, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    SAInfo saInfo;
+    saInfo.isDistributed = true;
+    saInfo.remoteObj = saMgr;
+    saMgr->abilityMap_[SAID] = saInfo;
+    sptr<IRemoteObject> res = saMgr->GetSystemAbilityFromRemote(SAID);
+    EXPECT_NE(res, nullptr);
+}
+
+/**
+ * @tc.name: CheckSystemAbility001
+ * @tc.desc: test CheckSystemAbility! CheckSystemAbility invalid!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, CheckSystemAbility001, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    sptr<IRemoteObject> res = saMgr->CheckSystemAbility(INVALID_SAID);
+    EXPECT_EQ(res, nullptr);
+}
+
+/**
+ * @tc.name: CheckSystemAbility002
+ * @tc.desc: test CheckSystemAbility! found service!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, CheckSystemAbility002, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    SAInfo saInfo;
+    saInfo.remoteObj = saMgr;
+    saMgr->abilityMap_[SAID] = saInfo;
+    sptr<IRemoteObject> res = saMgr->CheckSystemAbility(SAID);
+    EXPECT_NE(res, nullptr);
+}
+
+/**
+ * @tc.name: CheckDistributedPermission001
+ * @tc.desc: test CheckDistributedPermission! return true!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, CheckDistributedPermission001, TestSize.Level1)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    bool res = saMgr->CheckDistributedPermission();
+    EXPECT_EQ(res, true);
+}
+
+/**
+ * @tc.name: NotifySystemAbilityChanged001
+ * @tc.desc: test NotifySystemAbilityChanged! listener null pointer!!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, NotifySystemAbilityChanged001, TestSize.Level3)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    string deviceId = "test";
+    code = 1;
+    bool res = saMgr->NotifySystemAbilityChanged(SAID, deviceId, code, nullptr);
+    EXPECT_NE(saMgr, nullptr);
+}
+
+/**
+ * @tc.name: NotifySystemAbilityChanged002
+ * @tc.desc: test NotifySystemAbilityChanged!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, NotifySystemAbilityChanged002, TestSize.Level1)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    sptr<IRemoteObject> testAbility(new SaStatusChangeMock());
+    string deviceId = "test";
+    code = 1;
+    bool res = saMgr->NotifySystemAbilityChanged(SAID, deviceId, code, testAbility);
+    EXPECT_NE(saMgr, nullptr);
+}
+
+/**
+ * @tc.name: FindSystemAbilityNotify001
+ * @tc.desc: test FindSystemAbilityNotify!
+ * @tc.type: FUNC
+ */
+HWTEST_F(SystemAbilityMgrStubTest, NotifySystemAbilityChanged002, TestSize.Level1)
+{
+    sptr<SystemAbilityManager> saMgr = SystemAbilityManager::GetInstance();
+    sptr<IRemoteObject> testAbility(new SaStatusChangeMock());
+    string deviceId = "test";
+    code = 1;
+    bool res = saMgr->NotifySystemAbilityChanged(SAID, deviceId, code, testAbility);
+    EXPECT_NE(saMgr, nullptr);
+}
+}