diff --git a/interfaces/kits/js/src/mod_fs/ani/bind_function_class.cpp b/interfaces/kits/js/src/mod_fs/ani/bind_function_class.cpp
index 065495c9ade9c4c775ce494fa218d0c382077459..7a9557f5b34718e3ea77a0001b64cfc880018796 100644
--- a/interfaces/kits/js/src/mod_fs/ani/bind_function_class.cpp
+++ b/interfaces/kits/js/src/mod_fs/ani/bind_function_class.cpp
@@ -43,7 +43,7 @@ static ani_status BindFileMethods(ani_env *env)
 
     std::array methods = {
         ani_native_function { "getParent", nullptr, reinterpret_cast<void *>(FileAni::GetParent) },
-        ani_native_function { "lock", nullptr, reinterpret_cast<void *>(FileAni::Lock) },
+        ani_native_function { "lockSync", nullptr, reinterpret_cast<void *>(FileAni::LockSync) },
         ani_native_function { "tryLock", nullptr, reinterpret_cast<void *>(FileAni::TryLock) },
         ani_native_function { "unlock", nullptr, reinterpret_cast<void *>(FileAni::UnLock) },
     };
diff --git a/interfaces/kits/js/src/mod_fs/ani/ets/@ohos.file.fs.ets b/interfaces/kits/js/src/mod_fs/ani/ets/@ohos.file.fs.ets
index 67eb95add30a0cd803f0542ae46c90f870189651..64a1c206771a066ddb8268e66f54c2df59983503 100644
--- a/interfaces/kits/js/src/mod_fs/ani/ets/@ohos.file.fs.ets
+++ b/interfaces/kits/js/src/mod_fs/ani/ets/@ohos.file.fs.ets
@@ -539,7 +539,9 @@ export interface File {
   name: String;
 
   getParent(): String;
-  lock(exclusive?: boolean): void;
+  lock(exclusive?: boolean): Promise<void>;
+  lock(callback: AsyncCallback<void>): void;
+  lock(exclusive: boolean, callback: AsyncCallback<void>): void;
   tryLock(exclusive?: boolean): void;
   unlock(): void;
 }
@@ -558,7 +560,58 @@ class FileInner implements File {
   }
 
   native getParent(): String;
-  native lock(exclusive?: boolean): void;
+  native lockSync(exclusive?: boolean): void;
+  
+  lock(exclusive?: boolean): Promise<void> {
+    return new Promise<void>((resolve: (result: undefined) => void, reject: (e: BusinessError<void>) => void): void => {
+      if (exclusive === undefined) {
+        let promise = taskpool.execute((): undefined => {
+          return this.lockSync();
+        });
+        promise.then((ret: NullishType): void => {
+          resolve(undefined);
+        }).catch((e: BusinessError): void => {
+          reject(e);
+        });
+      } else {
+        let promise = taskpool.execute((exclusive: boolean): undefined => {
+          return this.lockSync(exclusive);
+        }, exclusive);
+        promise.then((ret: NullishType): void => {
+          resolve(undefined);
+        }).catch((e: BusinessError): void => {
+          reject(e);
+        });
+      }
+    });
+  }
+
+  lock(callback: AsyncCallback<void>): void {
+    let promise = taskpool.execute((): undefined => {
+      return this.lockSync();
+    });
+    promise.then((ret: NullishType): void => {
+      let e = new BusinessError<void>();
+      e.code = 0;
+      callback(e, undefined);
+    }).catch((e: BusinessError): void => {
+      callback(e, undefined);
+    });
+  }
+  
+  lock(exclusive: boolean, callback: AsyncCallback<void>): void {
+    let promise = taskpool.execute((exclusive: boolean): undefined => {
+      return this.lockSync(exclusive);
+    }, exclusive);
+    promise.then((ret: NullishType): void => {
+      let e = new BusinessError<void>();
+      e.code = 0;
+      callback(e, undefined);
+    }).catch((e: BusinessError): void => {
+      callback(e, undefined);
+    });
+  }
+
   native tryLock(exclusive?: boolean): void;
   native unlock(): void;
 
diff --git a/interfaces/kits/js/src/mod_fs/class_file/ani/file_ani.cpp b/interfaces/kits/js/src/mod_fs/class_file/ani/file_ani.cpp
index 5dc1136590656cda875c8d1ee80b73597af47b27..43a6e5f42af39b7eb0fcb6915e71e47057f09c48 100644
--- a/interfaces/kits/js/src/mod_fs/class_file/ani/file_ani.cpp
+++ b/interfaces/kits/js/src/mod_fs/class_file/ani/file_ani.cpp
@@ -65,7 +65,7 @@ ani_string FileAni::GetParent(ani_env *env, [[maybe_unused]] ani_object object)
     return parent;
 }
 
-void FileAni::Lock(ani_env *env, [[maybe_unused]] ani_object object, ani_object exclusive)
+void FileAni::LockSync(ani_env *env, [[maybe_unused]] ani_object object, ani_object exclusive)
 {
     ani_boolean isUndefined;
     bool exc = false;
diff --git a/interfaces/kits/js/src/mod_fs/class_file/ani/file_ani.h b/interfaces/kits/js/src/mod_fs/class_file/ani/file_ani.h
index cc7780f857e335746b46a6b49e8721caf9fefb51..1ab5eb61ebbfd577ffba77ef23bf2839e1d7800e 100644
--- a/interfaces/kits/js/src/mod_fs/class_file/ani/file_ani.h
+++ b/interfaces/kits/js/src/mod_fs/class_file/ani/file_ani.h
@@ -26,7 +26,7 @@ namespace ANI {
 class FileAni final {
 public:
     static ani_string GetParent(ani_env *env, [[maybe_unused]] ani_object object);
-    static void Lock(ani_env *env, [[maybe_unused]] ani_object object, ani_object exclusive);
+    static void LockSync(ani_env *env, [[maybe_unused]] ani_object object, ani_object exclusive);
     static void TryLock(ani_env *env, [[maybe_unused]] ani_object object, ani_object exclusive);
     static void UnLock(ani_env *env, [[maybe_unused]] ani_object object);
 };