diff --git a/services/native/driver_extension_manager/include/device_manager/device.h b/services/native/driver_extension_manager/include/device_manager/device.h
index e49027510cb2a1e83e621f18953456dbd8857d77..4ec40554299a7266a4b476a15ebb8c7cfe1e1ea2 100644
--- a/services/native/driver_extension_manager/include/device_manager/device.h
+++ b/services/native/driver_extension_manager/include/device_manager/device.h
@@ -141,6 +141,14 @@ public:
     explicit DrvExtConnNotify(std::weak_ptr<Device> device) : device_(device) {}
     int32_t OnConnectDone(const sptr<IRemoteObject> &remote, int resultCode) override;
     int32_t OnDisconnectDone(int resultCode) override;
+    bool IsInvalidDrvExtConnectionInfo()
+    {
+        return info_ == nullptr;
+    }
+    void ClearDrvExtConnectionInfo()
+    {
+        info_ = nullptr;
+    }
 
 private:
     std::weak_ptr<Device> device_;
diff --git a/services/native/driver_extension_manager/include/driver_controller/driver_extension_controller.h b/services/native/driver_extension_manager/include/driver_controller/driver_extension_controller.h
index bf42d63101c1c65f19f9aef86f54cb031bf5ee2e..d4ee97862ce3710a18165bfc280d31a5b50c0aeb 100644
--- a/services/native/driver_extension_manager/include/driver_controller/driver_extension_controller.h
+++ b/services/native/driver_extension_manager/include/driver_controller/driver_extension_controller.h
@@ -62,7 +62,7 @@ public:
     virtual int32_t OnDisconnectDone(int resultCode) = 0;
     bool IsConnectDone();
     sptr<IRemoteObject> GetRemoteObj();
-private:
+protected:
     friend class DriverExtensionController;
     std::shared_ptr<DrvExtConnectionInfo> info_ = nullptr;
 };
diff --git a/services/native/driver_extension_manager/src/device_manager/device.cpp b/services/native/driver_extension_manager/src/device_manager/device.cpp
index 0c2300388eda8000576bb5e12017a598f89d5318..780ff61b746e34edc1bf0752aa3f98e2b62524de 100644
--- a/services/native/driver_extension_manager/src/device_manager/device.cpp
+++ b/services/native/driver_extension_manager/src/device_manager/device.cpp
@@ -98,6 +98,10 @@ int32_t Device::Disconnect()
 {
     EDM_LOGI(MODULE_DEV_MGR, "%{public}s enter", __func__);
     std::lock_guard<std::recursive_mutex> lock(deviceMutex_);
+    if (connectNofitier_ != nullptr && connectNofitier_->IsInvalidDrvExtConnectionInfo()) {
+        EDM_LOGI(MODULE_DEV_MGR, "driver extension has been disconnected");
+        return UsbErrCode::EDM_OK;
+    }
     uint32_t busDevId = GetDeviceInfo()->GetBusDevId();
     std::string bundleInfo = GetBundleInfo();
     std::string bundleName = Device::GetBundleName(bundleInfo);
@@ -105,7 +109,7 @@ int32_t Device::Disconnect()
     int32_t ret = DriverExtensionController::GetInstance().DisconnectDriverExtension(
         bundleName, abilityName, connectNofitier_, busDevId);
     if (ret != UsbErrCode::EDM_OK) {
-        EDM_LOGE(MODULE_DEV_MGR, "failed to connect driver extension");
+        EDM_LOGE(MODULE_DEV_MGR, "failed to disconnect driver extension");
         return ret;
     }
 
@@ -137,6 +141,7 @@ void Device::OnDisconnect(int resultCode)
 
     std::lock_guard<std::recursive_mutex> lock(deviceMutex_);
     drvExtRemote_ = nullptr;
+    connectNofitier_->ClearDrvExtConnectionInfo();
     for (auto &callback : callbacks_) {
         callback->OnUnBind(GetDeviceInfo()->GetDeviceId(), {static_cast<UsbErrCode>(resultCode), ""});
     }
diff --git a/services/native/driver_extension_manager/src/device_manager/etx_device_mgr.cpp b/services/native/driver_extension_manager/src/device_manager/etx_device_mgr.cpp
index d404ae06bfaa210793ee11063a166320f60adb15..2ffb99d7c93074ef6fd88e0ace5163c36b0d375a 100644
--- a/services/native/driver_extension_manager/src/device_manager/etx_device_mgr.cpp
+++ b/services/native/driver_extension_manager/src/device_manager/etx_device_mgr.cpp
@@ -163,6 +163,7 @@ int32_t ExtDeviceManager::RemoveAllDevIdOfBundleInfoMap(shared_ptr<Device> devic
 
 int32_t ExtDeviceManager::AddBundleInfo(enum BusType busType, const string &bundleName, const string &abilityName)
 {
+    EDM_LOGI(MODULE_DEV_MGR, "%{public}s enter", __func__);
     if (busType <= BUS_TYPE_INVALID || busType > BUS_TYPE_TEST) {
         EDM_LOGE(MODULE_DEV_MGR, "busType para invalid");
         return EDM_ERR_INVALID_PARAM;
@@ -213,6 +214,7 @@ int32_t ExtDeviceManager::AddBundleInfo(enum BusType busType, const string &bund
 
 int32_t ExtDeviceManager::RemoveBundleInfo(enum BusType busType, const string &bundleName, const string &abilityName)
 {
+    EDM_LOGI(MODULE_DEV_MGR, "%{public}s enter", __func__);
     if (busType <= BUS_TYPE_INVALID || busType >= BUS_TYPE_TEST) {
         EDM_LOGE(MODULE_DEV_MGR, "busType para invalid");
         return EDM_ERR_INVALID_PARAM;
@@ -238,8 +240,8 @@ int32_t ExtDeviceManager::RemoveBundleInfo(enum BusType busType, const string &b
 
         // iterate over device by bustype
         if (bundleInfo.compare(device->GetBundleInfo()) == 0) {
-            device->RemoveBundleInfo(); // update device
             int32_t ret = RemoveAllDevIdOfBundleInfoMap(device, bundleInfo);
+            device->RemoveBundleInfo(); // update device
             if (ret != EDM_OK) {
                 EDM_LOGE(MODULE_DEV_MGR,
                     "deviceId[%{public}016" PRIX64 "] stop driver extension ability[%{public}s] fail[%{public}d]",
@@ -252,6 +254,7 @@ int32_t ExtDeviceManager::RemoveBundleInfo(enum BusType busType, const string &b
 
 int32_t ExtDeviceManager::UpdateBundleInfo(enum BusType busType, const string &bundleName, const string &abilityName)
 {
+    EDM_LOGI(MODULE_DEV_MGR, "%{public}s enter", __func__);
     // stop ability of device and reset bundleInfo of device
     int32_t ret = RemoveBundleInfo(busType, bundleName, abilityName);
     if (ret != EDM_OK) {
@@ -299,7 +302,7 @@ int32_t ExtDeviceManager::UpdateBundleStatusCallback(
     // remove bundle
     ret = ExtDeviceManager::GetInstance().RemoveBundleInfo((enum BusType)busType, bundleName, abilityName);
     if (ret != EDM_OK) {
-        EDM_LOGE(MODULE_DEV_MGR, "callback update bundle info fail");
+        EDM_LOGE(MODULE_DEV_MGR, "callback remove bundle info fail");
     }
 
     return ret;
@@ -382,7 +385,7 @@ int32_t ExtDeviceManager::UnRegisterDevice(const shared_ptr<DeviceInfo> devInfo)
     }
 
     if (bundleInfo.empty()) {
-        EDM_LOGD(MODULE_DEV_MGR, "deviceId %{public}016" PRIX64 " bundleInfo is empty", deviceId);
+        EDM_LOGI(MODULE_DEV_MGR, "deviceId %{public}016" PRIX64 " bundleInfo is empty", deviceId);
         return EDM_OK;
     }