diff --git a/adapter/uhdf2/host/test/unittest/devhost_test.cpp b/adapter/uhdf2/host/test/unittest/devhost_test.cpp
index 81384ea0165fb04518d81382d4fd8e479b4e9b5a..0a4d51896f531fabf60814ac284f27e88d84c55c 100644
--- a/adapter/uhdf2/host/test/unittest/devhost_test.cpp
+++ b/adapter/uhdf2/host/test/unittest/devhost_test.cpp
@@ -78,7 +78,7 @@ HWTEST_F(DevHostTest, DevHostDevMgrServiceProxyTest, TestSize.Level1)
     ASSERT_TRUE(ret != HDF_SUCCESS);
     const char *name = "test_svcName";
     ret = instance->LoadDevice(instance, name);
-    ASSERT_TRUE(ret == HDF_SUCCESS);
+    ASSERT_TRUE(ret != HDF_SUCCESS);
 
     struct DevmgrServiceProxy *proxy = reinterpret_cast<struct DevmgrServiceProxy *>(object);
     HdfRemoteServiceRecycle(proxy->remote);
diff --git a/adapter/uhdf2/host/test/unittest/devmgr_test.cpp b/adapter/uhdf2/host/test/unittest/devmgr_test.cpp
index 7678e47bceacbb49d8758f4722c2f13b1545591a..8179b8eb60cda24dc16bc8dce2c1d73e3eb00952 100644
--- a/adapter/uhdf2/host/test/unittest/devmgr_test.cpp
+++ b/adapter/uhdf2/host/test/unittest/devmgr_test.cpp
@@ -103,7 +103,7 @@ HWTEST_F(DevMgrTest, DriverUnLoaderTest, TestSize.Level1)
     ASSERT_TRUE(devmgr != nullptr);
 
     int ret = devmgr->UnloadDevice(devmgr, TEST_SERVICE_NAME);
-    ASSERT_EQ(ret, HDF_SUCCESS);
+    ASSERT_TRUE(ret != HDF_SUCCESS);
 
     uint32_t cnt = 0;
     struct HdfRemoteService *sampleService = servmgr->GetService(servmgr, TEST_SERVICE_NAME);
diff --git a/adapter/uhdf2/manager/src/devmgr_service_stub.c b/adapter/uhdf2/manager/src/devmgr_service_stub.c
index ad7b82989bf7f0f7a2e35fe7e2ea79518afef818..ab4d6d6b2c72204a65a0cfccb9c6b001718afa31 100644
--- a/adapter/uhdf2/manager/src/devmgr_service_stub.c
+++ b/adapter/uhdf2/manager/src/devmgr_service_stub.c
@@ -152,7 +152,7 @@ int32_t DevmgrServiceStubDispatch(struct HdfRemoteService *stub, int code, struc
         HDF_LOGE("%{public}s devmgr service stub dispach failed, cmd id is %{public}d, ret = %{public}d", __func__,
             code, ret);
     }
-    return HDF_SUCCESS;
+    return ret;
 }
 
 static void RemoveModule(const char *module)
diff --git a/framework/core/manager/src/devmgr_service.c b/framework/core/manager/src/devmgr_service.c
index e5d115b48492f799f888668246601eb2f11b107b..63ee995898db4db7b00961037bcce5fbd80e2b74 100644
--- a/framework/core/manager/src/devmgr_service.c
+++ b/framework/core/manager/src/devmgr_service.c
@@ -47,7 +47,7 @@ static bool DevmgrServiceDynamicDevInfoFound(
     return false;
 }
 
-#define WAIT_HOST_SLEEP_TIME    1 // ms
+#define WAIT_HOST_SLEEP_TIME    2 // ms
 #define WAIT_HOST_SLEEP_CNT     1000
 static int DevmgrServiceStartHostProcess(struct DevHostServiceClnt *hostClnt, bool sync, bool dynamic)
 {
@@ -75,6 +75,9 @@ static int DevmgrServiceStartHostProcess(struct DevHostServiceClnt *hostClnt, bo
 
     if (waitCount <= 0) {
         HDF_LOGE("wait host(%{public}s, %{public}d) attach timeout", hostClnt->hostName, hostClnt->hostId);
+        if (installer->StopDeviceHost != NULL) {
+            installer->StopDeviceHost(hostClnt->hostId, hostClnt->hostName);
+        }
         hostClnt->hostPid = -1;
         return HDF_ERR_TIMEOUT;
     }