diff --git a/interfaces/ets/ani/hilog/ets/@ohos.hilog.ets b/interfaces/ets/ani/hilog/ets/@ohos.hilog.ets
index eb237b69b0e0ade8c1f4b37ef9ee4003d7d298fe..5f69342b2c2669d08f3de49e029e3e6b9848dbeb 100644
--- a/interfaces/ets/ani/hilog/ets/@ohos.hilog.ets
+++ b/interfaces/ets/ani/hilog/ets/@ohos.hilog.ets
@@ -17,19 +17,19 @@ export default namespace hilog {
     loadLibrary("hilog_ani");
 
     export native function debug(domain: number, tag: string, format: string,
-        ...args: (int|boolean|number|string|bigint|Object|undefined|null)[]): void;
+        ...args: (Object | undefined| null)[]): void;
 
     export native function info(domain: number, tag: string, format: string,
-        ...args: (int|boolean|number|string|bigint|Object|undefined|null)[]): void;
+        ...args: (Object | undefined | null)[]): void;
 
     export native function warn(domain: number, tag: string, format: string,
-        ...args: (int|boolean|number|string|bigint|Object|undefined|null)[]): void;
+        ...args: (Object | undefined | null)[]): void;
 
     export native function error(domain: number, tag: string, format: string,
-        ...args: (int|boolean|number|string|bigint|Object|undefined|null)[]): void;
+        ...args: (Object | undefined | null)[]): void;
 
     export native function fatal(domain: number, tag: string, format: string,
-        ...args: (int|boolean|number|string|bigint|Object|undefined|null)[]): void;
+        ...args: (Object | undefined | null)[]): void;
 
     export native function isLoggable(domain: number, tag: string, level: LogLevel): boolean;
 
diff --git a/interfaces/ets/ani/hilog/include/ani_util.h b/interfaces/ets/ani/hilog/include/ani_util.h
index d136c2727d601275ca72235c99c3474286e357cf..2d4e26a452896aa5e3fa4c3c9e99c2d462ea6c23 100644
--- a/interfaces/ets/ani/hilog/include/ani_util.h
+++ b/interfaces/ets/ani/hilog/include/ani_util.h
@@ -40,7 +40,8 @@ public:
     static AniArgsType AniArgGetType(ani_env *env, ani_object element);
     static bool AniEnumToInt32(ani_env *env, ani_enum_item enumItem, int32_t &value);
     static std::string AniStringToStdString(ani_env *env, ani_string aniStr);
-    static std::string AniArgToString(ani_env *env, ani_object arg);
+    static std::string AniArgToString(ani_env *env, ani_object arg, AniArgsType type);
+    static bool InitClassAndMethod(ani_env *env);
 };
 }  // namespace HiviewDFX
 }  // namespace OHOS
diff --git a/interfaces/ets/ani/hilog/src/ani_util.cpp b/interfaces/ets/ani/hilog/src/ani_util.cpp
index 2d86a835c7646a4ee88e04a0d00518d7dfc53b8b..3f2ecc6bd7bc12ce493f26bc77e93905ce6e0e14 100644
--- a/interfaces/ets/ani/hilog/src/ani_util.cpp
+++ b/interfaces/ets/ani/hilog/src/ani_util.cpp
@@ -14,7 +14,7 @@
  */
 
 #include <ani.h>
-#include <array>
+#include <map>
 #include "hilog/log.h"
 #include "hilog/log_c.h"
 #include "hilog/log_cpp.h"
@@ -43,6 +43,57 @@ const std::pair<const char*, AniArgsType> OBJECT_TYPE[] = {
     {CLASS_NAME_OBJECT, AniArgsType::ANI_OBJECT},
 };
 
+static std::map<AniArgsType, ani_method> TOSTRING_MAP = {
+    {AniArgsType::ANI_INT, nullptr},
+    {AniArgsType::ANI_BOOLEAN, nullptr},
+    {AniArgsType::ANI_NUMBER, nullptr},
+    {AniArgsType::ANI_STRING, nullptr},
+    {AniArgsType::ANI_OBJECT, nullptr},
+};
+
+static std::map<AniArgsType, ani_ref> CLASS_MAP = {
+    {AniArgsType::ANI_INT, nullptr},
+    {AniArgsType::ANI_BOOLEAN, nullptr},
+    {AniArgsType::ANI_NUMBER, nullptr},
+    {AniArgsType::ANI_STRING, nullptr},
+    {AniArgsType::ANI_BIGINT, nullptr},
+    {AniArgsType::ANI_OBJECT, nullptr},
+};
+
+static ani_method FindToStringMethod(ani_env *env, const char* className)
+{
+    ani_method toStringMethod = nullptr;
+    if (toStringMethod == nullptr) {
+        ani_class cls = nullptr;
+        if (env->FindClass(className, &cls)) {
+            return nullptr;
+        }
+        if (ANI_OK != env->Class_FindMethod(cls, FUNCTION_TOSTRING, MANGLING_TOSTRING, &toStringMethod)) {
+            return nullptr;
+        }
+    }
+    return toStringMethod;
+}
+
+bool AniUtil::InitClassAndMethod(ani_env *env)
+{
+    for (const auto &objType : OBJECT_TYPE) {
+        ani_class cls = nullptr;
+        ani_ref globalClassRef = nullptr;
+        if (ANI_OK != env->FindClass(objType.first, &cls) ||
+            ANI_OK != env->GlobalReference_Create(cls, &globalClassRef)) {
+            return false;
+        }
+        CLASS_MAP[objType.second] = globalClassRef;
+    }
+    TOSTRING_MAP[AniArgsType::ANI_INT] = FindToStringMethod(env, CLASS_NAME_INT);
+    TOSTRING_MAP[AniArgsType::ANI_BOOLEAN] = FindToStringMethod(env, CLASS_NAME_BOOLEAN);
+    TOSTRING_MAP[AniArgsType::ANI_NUMBER] = FindToStringMethod(env, CLASS_NAME_DOUBLE);
+    TOSTRING_MAP[AniArgsType::ANI_BIGINT] = FindToStringMethod(env, CLASS_NAME_BIGINT);
+    TOSTRING_MAP[AniArgsType::ANI_OBJECT] = FindToStringMethod(env, CLASS_NAME_OBJECT);
+    return true;
+}
+
 bool AniUtil::IsRefUndefined(ani_env *env, ani_ref ref)
 {
     ani_boolean isUndefined = ANI_FALSE;
@@ -68,12 +119,8 @@ AniArgsType AniUtil::AniArgGetType(ani_env *env, ani_object element)
     }
 
     for (const auto &objType : OBJECT_TYPE) {
-        ani_class cls {};
-        if (ANI_OK != env->FindClass(objType.first, &cls)) {
-            continue;
-        }
         ani_boolean isInstance = false;
-        if (ANI_OK != env->Object_InstanceOf(element, cls, &isInstance)) {
+        if (ANI_OK != env->Object_InstanceOf(element, static_cast<ani_type>(CLASS_MAP[objType.second]), &isInstance)) {
             continue;
         }
         if (static_cast<bool>(isInstance)) {
@@ -106,11 +153,13 @@ std::string AniUtil::AniStringToStdString(ani_env *env, ani_string aniStr)
     return std::string(utf8Buffer);
 }
 
-std::string AniUtil::AniArgToString(ani_env *env, ani_object arg)
+std::string AniUtil::AniArgToString(ani_env *env, ani_object arg, AniArgsType type)
 {
-    ani_ref argStrRef {};
-    if (ANI_OK != env->Object_CallMethodByName_Ref(arg, FUNCTION_TOSTRING, MANGLING_TOSTRING, &argStrRef)) {
-        HiLog::Info(LABEL, "Call ets method toString() failed.");
+    ani_ref argStrRef = nullptr;
+    if (type == AniArgsType::ANI_STRING) {
+        argStrRef = static_cast<ani_ref>(arg);
+    } else if (ANI_OK != env->Object_CallMethod_Ref(arg, TOSTRING_MAP[type], &argStrRef)) {
+        HILOG_ERROR(LOG_CORE, "call method %{public}s failed", FUNCTION_TOSTRING);
         return "";
     }
     return AniStringToStdString(env, static_cast<ani_string>(argStrRef));
diff --git a/interfaces/ets/ani/hilog/src/hilog_ani.cpp b/interfaces/ets/ani/hilog/src/hilog_ani.cpp
index 6bb16621b9b939f82fa4a0f824e9fde7f894ffc5..6e9d0f7bd5f803aed669dc859d784e8bfbf93924 100644
--- a/interfaces/ets/ani/hilog/src/hilog_ani.cpp
+++ b/interfaces/ets/ani/hilog/src/hilog_ani.cpp
@@ -16,6 +16,7 @@
 #include <ani.h>
 #include <array>
 #include <string>
+#include "ani_util.h"
 #include "hilog_ani_base.h"
 
 using namespace OHOS::HiviewDFX;
@@ -46,6 +47,9 @@ ANI_EXPORT ani_status ANI_Constructor(ani_vm *vm, uint32_t *result)
         return ANI_ERROR;
     };
 
+    if (!AniUtil::InitClassAndMethod(env)) {
+        return ANI_ERROR;
+    }
     *result = ANI_VERSION_1;
     return ANI_OK;
 }
diff --git a/interfaces/ets/ani/hilog/src/hilog_ani_base.cpp b/interfaces/ets/ani/hilog/src/hilog_ani_base.cpp
index e4730236bae37ef95b2731c88afebf5483cd35e3..c20eff143d6a35e93afcd1ac1ddea5ad5bf38ef3 100644
--- a/interfaces/ets/ani/hilog/src/hilog_ani_base.cpp
+++ b/interfaces/ets/ani/hilog/src/hilog_ani_base.cpp
@@ -172,7 +172,7 @@ void HilogAniBase::parseAniValue(ani_env *env, ani_ref element, std::vector<AniP
     } else if (type == AniArgsType::ANI_NULL) {
         res.val = "null";
     } else if (type != AniArgsType::ANI_UNKNOWN) {
-        res.val = AniUtil::AniArgToString(env, static_cast<ani_object>(element));
+        res.val = AniUtil::AniArgToString(env, static_cast<ani_object>(element), type);
     } else {
         HiLog::Info(LABEL, "%{public}s", "Type mismatch");
     }