diff --git a/frameworks/native/sensor/include/sensor_data_channel.h b/frameworks/native/sensor/include/sensor_data_channel.h
index ecf87bac672e816fa1cf0d4d350a88a7f9817c2d..f2d918a05dce305d790c8b8788c5dcca5fb86b01 100644
--- a/frameworks/native/sensor/include/sensor_data_channel.h
+++ b/frameworks/native/sensor/include/sensor_data_channel.h
@@ -30,23 +30,17 @@ class SensorDataChannel : public SensorBasicDataChannel {
 public:
     SensorDataChannel() = default;
     ~SensorDataChannel();
-    static int32_t HandleEvent(int32_t fd, int32_t events, void *data);
     int32_t CreateSensorDataChannel(DataChannelCB callBack, void *data);
     int32_t DestroySensorDataChannel();
-    bool IsThreadExit();
-    bool IsThreadStart();
     int32_t RestoreSensorDataChannel();
-    int32_t test = 10;
     DataChannelCB dataCB_ = nullptr;
     void *privateData_ = nullptr;
 
 private:
-    static void ThreadProcessTask(SensorDataChannel *sensorChannel);
     int32_t InnerSensorDataChannel();
     std::mutex eventRunnerMutex_;
-    static std::shared_ptr<SensorEventHandler> eventHandler_;
-    static std::shared_ptr<AppExecFwk::EventRunner> eventRunner_;
-    static int32_t receiveFd_;
+    std::shared_ptr<SensorEventHandler> eventHandler_;
+    int32_t receiveFd_;
 };
 }  // namespace Sensors
 }  // namespace OHOS
diff --git a/frameworks/native/sensor/src/sensor_data_channel.cpp b/frameworks/native/sensor/src/sensor_data_channel.cpp
index 501a6d0e0b9fcb558548b99623f3824ff5cc23db..b2f8e19a944e9453adb9e2161d5088ee7b3d6f6e 100644
--- a/frameworks/native/sensor/src/sensor_data_channel.cpp
+++ b/frameworks/native/sensor/src/sensor_data_channel.cpp
@@ -23,7 +23,6 @@ namespace OHOS {
 namespace Sensors {
 using namespace OHOS::HiviewDFX;
 using namespace OHOS::AppExecFwk;
-std::shared_ptr<SensorEventHandler> SensorDataChannel::eventHandler_;
 
 namespace {
 constexpr HiLogLabel LABEL = { LOG_CORE, SENSOR_LOG_DOMAIN, "SensorDataChannel" };
@@ -74,9 +73,8 @@ int32_t SensorDataChannel::InnerSensorDataChannel()
 int32_t SensorDataChannel::DestroySensorDataChannel()
 {
     std::lock_guard<std::mutex> eventRunnerLock(eventRunnerMutex_);
-    CHKPL(eventHandler_);
     eventHandler_ = nullptr;
-    // destroy sensor basic channelx
+    // destroy sensor basic channel
     return DestroySensorBasicChannel();
 }
 
diff --git a/frameworks/native/sensor/src/sensor_file_descriptor_listener.cpp b/frameworks/native/sensor/src/sensor_file_descriptor_listener.cpp
index 009ff6a4908ca46bf0bea5ba8f1a993d9b87b719..5baa89b9db511831c590b96fe5a1ecb65ecc3b8a 100644
--- a/frameworks/native/sensor/src/sensor_file_descriptor_listener.cpp
+++ b/frameworks/native/sensor/src/sensor_file_descriptor_listener.cpp
@@ -83,6 +83,7 @@ void SensorFileDescriptorListener::SetChannel(SensorDataChannel* channel)
 
 void SensorFileDescriptorListener::OnShutdown(int32_t fileDescriptor)
 {
+    SEN_HILOGI("On shut down fd:%{public}d", fileDescriptor);
     if (fileDescriptor < 0) {
         SEN_HILOGE("Invalid fd:%{public}d", fileDescriptor);
     }
@@ -96,6 +97,7 @@ void SensorFileDescriptorListener::OnShutdown(int32_t fileDescriptor)
 
 void SensorFileDescriptorListener::OnException(int32_t fileDescriptor)
 {
+    SEN_HILOGE("exception fd:%{public}d", fileDescriptor);
     if (fileDescriptor < 0) {
         SEN_HILOGE("Invalid fd::%{public}d", fileDescriptor);
     }