diff --git a/services/distributedhardwarefwkservice/src/componentmanager/component_manager.cpp b/services/distributedhardwarefwkservice/src/componentmanager/component_manager.cpp
index c53739b6aa220cb7cf975f8544c1affee4e2499e..67f0536dc7d59e962320b70a97416d6b2b539589 100644
--- a/services/distributedhardwarefwkservice/src/componentmanager/component_manager.cpp
+++ b/services/distributedhardwarefwkservice/src/componentmanager/component_manager.cpp
@@ -134,7 +134,7 @@ int32_t ComponentManager::UnInit()
         DHLOGE("StopSource failed, but want to continue");
     }
     if (!WaitForResult(Action::STOP_SINK, sinkResult)) {
-        DHLOGE("StopSource failed, but want to continue");
+        DHLOGE("StopSink failed, but want to continue");
     }
 
     compSource_.clear();
diff --git a/services/distributedhardwarefwkservice/src/resourcemanager/db_adapter.cpp b/services/distributedhardwarefwkservice/src/resourcemanager/db_adapter.cpp
index bc69c925ba69e769657ab43302e75e90d2032583..ad52d8e77283efbc5d9d4c09e807aea92121d9e5 100644
--- a/services/distributedhardwarefwkservice/src/resourcemanager/db_adapter.cpp
+++ b/services/distributedhardwarefwkservice/src/resourcemanager/db_adapter.cpp
@@ -157,7 +157,7 @@ void DBAdapter::SyncCompleted(const std::map<std::string, DistributedKv::Status>
 
 int32_t DBAdapter::GetDataByKey(const std::string &key, std::string &data)
 {
-    DHLOGI("Get data by key: %s", GetAnonyString(key).c_str());
+    DHLOGD("Get data by key: %s", GetAnonyString(key).c_str());
     std::lock_guard<std::mutex> lock(dbAdapterMutex_);
     if (kvStoragePtr_ == nullptr) {
         DHLOGE("kvStoragePtr_ is null");
diff --git a/services/distributedhardwarefwkservice/src/task/monitor_task_timer.cpp b/services/distributedhardwarefwkservice/src/task/monitor_task_timer.cpp
index d6c0d9b00921c54ffe10b46dff4079bbb87891b8..1df3b99682789bbc6df9d4c268802d414242cf67 100644
--- a/services/distributedhardwarefwkservice/src/task/monitor_task_timer.cpp
+++ b/services/distributedhardwarefwkservice/src/task/monitor_task_timer.cpp
@@ -114,7 +114,7 @@ void MonitorTaskTimer::StopTimer()
 
 void MonitorTaskTimer::Execute(const std::shared_ptr<OHOS::AppExecFwk::EventHandler> eventHandler)
 {
-    DHLOGI("start");
+    DHLOGD("start");
     if (eventHandler == nullptr) {
         DHLOGE("eventHandler is nullptr!");
         return;
@@ -130,7 +130,7 @@ void MonitorTaskTimer::Execute(const std::shared_ptr<OHOS::AppExecFwk::EventHand
             continue;
         }
         if (CapabilityInfoManager::GetInstance()->GetDataByKey(capabilityKey, capInfoPtr) != DH_FWK_SUCCESS) {
-            DHLOGI("CapabilityInfoManager can not find this key in DB, key: %s, networkId: %s, uuid: %s, dhId: %s",
+            DHLOGD("CapabilityInfoManager can not find this key in DB, key: %s, networkId: %s, uuid: %s, dhId: %s",
                 GetAnonyString(capabilityKey).c_str(), GetAnonyString(taskParam.networkId).c_str(),
                 GetAnonyString(taskParam.uuid).c_str(), GetAnonyString(taskParam.dhId).c_str());
             auto task = TaskFactory::GetInstance().CreateTask(TaskType::DISABLE, taskParam, nullptr);
diff --git a/services/distributedhardwarefwkservice/src/task/offline_task.cpp b/services/distributedhardwarefwkservice/src/task/offline_task.cpp
index d73ae1f4fa7bbca9571c1e0618968b743b7261a1..de8508e6405cf0452f8b669f4838bf8c5b1321e8 100644
--- a/services/distributedhardwarefwkservice/src/task/offline_task.cpp
+++ b/services/distributedhardwarefwkservice/src/task/offline_task.cpp
@@ -54,7 +54,7 @@ void OffLineTask::DoTaskInner()
 {
     DHLOGD("start offline task, id = %s, uuid = %s", GetId().c_str(), GetAnonyString(GetUUID()).c_str());
     this->SetTaskState(TaskState::RUNNING);
-    for (auto& step : this->GetTaskSteps()) {
+    for (const auto& step : this->GetTaskSteps()) {
         switch (step) {
             case TaskStep::UNREGISTER_OFFLINE_DISTRIBUTED_HARDWARE: {
                 CreateDisableTask();
diff --git a/services/distributedhardwarefwkservice/src/task/online_task.cpp b/services/distributedhardwarefwkservice/src/task/online_task.cpp
index 8f65bb3699528d823f684a60c7147e0c994ac710..b5475d40ae5d1f3c77c9846d3e22cfc6d92c40bf 100644
--- a/services/distributedhardwarefwkservice/src/task/online_task.cpp
+++ b/services/distributedhardwarefwkservice/src/task/online_task.cpp
@@ -47,7 +47,7 @@ void OnLineTask::DoTask()
 {
     DHLOGD("start online task, id = %s, uuid = %s", GetId().c_str(), GetAnonyString(GetUUID()).c_str());
     this->SetTaskState(TaskState::RUNNING);
-    for (auto& step : this->GetTaskSteps()) {
+    for (const auto& step : this->GetTaskSteps()) {
         switch (step) {
             case TaskStep::SYNC_ONLINE_INFO: {
                 DoSyncInfo();