diff --git a/radar/include/dm_radar_helper.h b/radar/include/dm_radar_helper.h
index 1bfb18159c614c960a8e574a1cededc4404a4557..1ab665ba914959c3b11469af32b03468ae12e2d0 100644
--- a/radar/include/dm_radar_helper.h
+++ b/radar/include/dm_radar_helper.h
@@ -18,6 +18,7 @@
 
 #include <cstdint>
 #include <chrono>
+#include <mutex>
 #include <string>
 #include <vector>
 
@@ -245,6 +246,8 @@ public:
 private:
     std::string GetAnonyUdid(std::string udid);
     int32_t GetApiType();
+    std::string localCallerName_;
+    std::mutex lock_;
 };
 
 extern "C" IDmRadarHelper *CreateDmRadarInstance();
diff --git a/radar/src/dm_radar_helper.cpp b/radar/src/dm_radar_helper.cpp
index c62a930cb20b391f21a91383cdabdc1226bc9ba7..7c8f66f807b667b78ab13deda2a72287f8ee081a 100644
--- a/radar/src/dm_radar_helper.cpp
+++ b/radar/src/dm_radar_helper.cpp
@@ -1251,9 +1251,15 @@ void DmRadarHelper::ReportGetLocalDevInfo(std::string hostName,
     std::string funcName, DmDeviceInfo &info, int32_t errCode, std::string localUdid)
 {
     int32_t res = DM_OK;
-    static std::string localCallerName = "";
-    if (localCallerName != hostName) {
-        localCallerName = hostName;
+    bool compare = false;
+    {
+        std::lock_guard<std::mutex> autoLock(lock_);
+        if (localCallerName_ != hostName) {
+            compare = true;
+            localCallerName_ = hostName;
+        }
+    }
+    if (compare) {
         if (errCode == DM_OK) {
             res = ReportGetLocalDevInfoResultSucc(hostName, funcName, info, errCode, localUdid);
         } else {