diff --git a/services/distributedhardwarefwkservice/include/componentloader/component_loader.h b/services/distributedhardwarefwkservice/include/componentloader/component_loader.h
index 726e5a34db4bbfb27f2e8aa81a0ca75237430a66..bc5315e7d6b9caf236d99317466f1ee465850546 100644
--- a/services/distributedhardwarefwkservice/include/componentloader/component_loader.h
+++ b/services/distributedhardwarefwkservice/include/componentloader/component_loader.h
@@ -18,6 +18,7 @@
 
 #include <atomic>
 #include <map>
+#include <mutex>
 #include <vector>
 
 #include "single_instance.h"
@@ -101,6 +102,7 @@ private:
 private:
     DHVersion localDHVersion_;
     std::map<DHType, CompHandler> compHandlerMap_;
+    std::mutex compHandlerMapMutex_;
     std::atomic<bool> isLocalVersionInit_;
     std::map<std::string, bool> resDescMap_;
 };
diff --git a/services/distributedhardwarefwkservice/src/componentloader/component_loader.cpp b/services/distributedhardwarefwkservice/src/componentloader/component_loader.cpp
index 145f2e27a4bd80ff4e5d8058d9f6c9373cbf5c33..6ed2b25202872d2121c759f55736a7d117cc27b5 100644
--- a/services/distributedhardwarefwkservice/src/componentloader/component_loader.cpp
+++ b/services/distributedhardwarefwkservice/src/componentloader/component_loader.cpp
@@ -100,6 +100,7 @@ int32_t ComponentLoader::Init()
 
 std::vector<DHType> ComponentLoader::GetAllCompTypes()
 {
+    std::lock_guard<std::mutex> lock(compHandlerMapMutex_);
     std::vector<DHType> DHTypeALL;
     for (std::map<DHType, CompHandler>::iterator it = compHandlerMap_.begin(); it != compHandlerMap_.end(); ++it) {
         DHTypeALL.push_back(it->first);
@@ -384,6 +385,7 @@ void *ComponentLoader::GetHandler(const std::string &soName)
 
 void ComponentLoader::GetAllHandler(std::map<DHType, CompConfig> &dhtypeMap)
 {
+    std::lock_guard<std::mutex> lock(compHandlerMapMutex_);
     std::map<DHType, CompConfig>::iterator itor;
     for (itor = dhtypeMap.begin(); itor != dhtypeMap.end(); ++itor) {
         CompHandler comHandler;
@@ -404,6 +406,7 @@ void ComponentLoader::GetAllHandler(std::map<DHType, CompConfig> &dhtypeMap)
 
 int32_t ComponentLoader::GetHardwareHandler(const DHType dhType, IHardwareHandler *&hardwareHandlerPtr)
 {
+    std::lock_guard<std::mutex> lock(compHandlerMapMutex_);
     if (compHandlerMap_.find(dhType) == compHandlerMap_.end()) {
         DHLOGE("DHType not exist, dhType: %{public}" PRIu32, (uint32_t)dhType);
         return ERR_DH_FWK_LOADER_HANDLER_IS_NULL;
@@ -428,6 +431,7 @@ int32_t ComponentLoader::GetHardwareHandler(const DHType dhType, IHardwareHandle
 
 int32_t ComponentLoader::GetSource(const DHType dhType, IDistributedHardwareSource *&sourcePtr)
 {
+    std::lock_guard<std::mutex> lock(compHandlerMapMutex_);
     if (compHandlerMap_.find(dhType) == compHandlerMap_.end()) {
         DHLOGE("DHType not exist, dhType: %{public}" PRIu32, (uint32_t)dhType);
         return ERR_DH_FWK_LOADER_HANDLER_IS_NULL;
@@ -452,6 +456,7 @@ int32_t ComponentLoader::GetSource(const DHType dhType, IDistributedHardwareSour
 
 int32_t ComponentLoader::GetSink(const DHType dhType, IDistributedHardwareSink *&sinkPtr)
 {
+    std::lock_guard<std::mutex> lock(compHandlerMapMutex_);
     if (compHandlerMap_.find(dhType) == compHandlerMap_.end()) {
         DHLOGE("DHType not exist, dhType: %{public}" PRIu32, (uint32_t)dhType);
         return ERR_DH_FWK_LOADER_HANDLER_IS_NULL;
@@ -542,6 +547,7 @@ int32_t ComponentLoader::UnInit()
 {
     DHLOGI("release all handler");
     DHTraceStart(COMPONENT_RELEASE_START);
+    std::lock_guard<std::mutex> lock(compHandlerMapMutex_);
     int32_t ret = DH_FWK_SUCCESS;
     for (std::map<DHType, CompHandler>::iterator iter = compHandlerMap_.begin();
         iter != compHandlerMap_.end(); ++iter) {
@@ -608,6 +614,7 @@ bool ComponentLoader::IsDHTypeExist(DHType dhType)
 
 int32_t ComponentLoader::GetSourceSaId(const DHType dhType)
 {
+    std::lock_guard<std::mutex> lock(compHandlerMapMutex_);
     if (compHandlerMap_.find(dhType) == compHandlerMap_.end()) {
         DHLOGE("DHType not exist, dhType: %{public}" PRIu32, (uint32_t)dhType);
         return DEFAULT_SA_ID;
@@ -617,6 +624,7 @@ int32_t ComponentLoader::GetSourceSaId(const DHType dhType)
 
 DHType ComponentLoader::GetDHTypeBySrcSaId(const int32_t saId)
 {
+    std::lock_guard<std::mutex> lock(compHandlerMapMutex_);
     DHType type = DHType::UNKNOWN;
     for (const auto &handler : compHandlerMap_) {
         if (handler.second.sourceSaId == saId) {