diff --git a/interfaces/kits/ani/common_event/src/ani_common_event_utils.cpp b/interfaces/kits/ani/common_event/src/ani_common_event_utils.cpp
index f7e1355039e3bf2d798b8b6f3f52ecc933f75413..e82aef394071dd1dd5f619b350ac79acf506047b 100644
--- a/interfaces/kits/ani/common_event/src/ani_common_event_utils.cpp
+++ b/interfaces/kits/ani/common_event/src/ani_common_event_utils.cpp
@@ -58,15 +58,15 @@ ani_status AniCommonEventUtils::GetAniString(ani_env* env, const std::string str
 
 void AniCommonEventUtils::GetStdStringArrayClass(ani_env* env, ani_object arrayObj, std::vector<std::string>& strings)
 {
-    ani_int length;
+    ani_double length;
     auto ret = ANI_ERROR;
-    ret = env->Object_GetPropertyByName_Int(arrayObj, "length", &length);
+    ret = env->Object_GetPropertyByName_Double(arrayObj, "length", &length);
     if (ret != ANI_OK) {
         EVENT_LOGE("GetStdStringArrayClass Object_GetPropertyByName_Double error. result: %{public}d.", ret);
         return;
     }
 
-    for (int32_t i = 0; i < length; i++) {
+    for (int32_t i = 0; i < static_cast<int32_t>(length); i++) {
         ani_ref stringEntryRef;
         ret = env->Object_CallMethodByName_Ref(arrayObj, "$_get", "I:Lstd/core/Object;", &stringEntryRef, i);
         if (ret != ANI_OK) {