diff --git a/services/dbinder/dbinder_service/src/dbinder_service.cpp b/services/dbinder/dbinder_service/src/dbinder_service.cpp
index 1e41c6d1fddecbc669babf52cdbca1753a0cdb67..2e186912928be1c3679331052e4a4f3d25838b78 100755
--- a/services/dbinder/dbinder_service/src/dbinder_service.cpp
+++ b/services/dbinder/dbinder_service/src/dbinder_service.cpp
@@ -555,29 +555,25 @@ bool DBinderService::RegisterRemoteProxy(std::u16string serviceName, sptr<IRemot
 
     binder_uintptr_t binder = (binder_uintptr_t)binderObject.GetRefPtr();
     DBINDER_LOGI("register remote proxy");
-
-    std::unique_lock<std::shared_mutex> lockGuard(remoteBinderMutex_);
-
-    // clear historical remnants, Don't care if it succeeds
-    (void)mapRemoteBinderObjects_.erase(serviceName);
-    auto result = mapRemoteBinderObjects_.insert(std::pair<std::u16string, binder_uintptr_t>(serviceName, binder));
-    return result.second;
+    return RegisterRemoteProxyInner(serviceName, binder);
 }
 
 bool DBinderService::RegisterRemoteProxy(std::u16string serviceName, int32_t systemAbilityId)
 {
     DBINDER_LOGI("register remote proxy, service name = %{public}s", Str16ToStr8(serviceName).c_str());
 
-    if (serviceName.length() == 0) {
+    if (serviceName.length() == 0 || systemAbilityId <= 0) {
         DBINDER_LOGE("serviceName.length() = %zu", serviceName.length());
         return false;
     }
 
     binder_uintptr_t binder = (binder_uintptr_t)systemAbilityId;
-    DBINDER_LOGI("register remote proxy");
+    return RegisterRemoteProxyInner(serviceName, binder);
+}
 
+bool DBinderService::RegisterRemoteProxyInner(std::u16string serviceName, binder_uintptr_t binder)
+{
     std::unique_lock<std::shared_mutex> lockGuard(remoteBinderMutex_);
-
     // clear historical remnants, Don't care if it succeeds
     (void)mapRemoteBinderObjects_.erase(serviceName);
     auto result = mapRemoteBinderObjects_.insert(std::pair<std::u16string, binder_uintptr_t>(serviceName, binder));