diff --git a/api/@ohos.file.fs.d.ets b/api/@ohos.file.fs.d.ets
index e5e897722413bb2aa0637b546ecfce051b660cf0..6e057184c111e64061342137d637f00a008bbb4a 100644
--- a/api/@ohos.file.fs.d.ets
+++ b/api/@ohos.file.fs.d.ets
@@ -457,7 +457,7 @@ function copy(srcUri: string, destUri: string, options: CopyOptions, callback: A
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 20
  */
-function copyDir(src: string, dest: string, mode?: number): Promise<void>;
+function copyDirWithMode(src: string, dest: string, mode?: number): Promise<void>;
 
 /**
  * Copy directory.
@@ -497,7 +497,7 @@ function copyDir(src: string, dest: string, callback: AsyncCallback<void>): void
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 20
  */
-function copyDir(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
+function copyDirWithCallback(src: string, dest: string, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
 
 /**
  * Copy directory.
@@ -539,7 +539,16 @@ function copyDir(src: string, dest: string, mode: number, callback: AsyncCallbac
  * @syscap SystemCapability.FileManagement.File.FileIO
  * @since 20
  */
-function copyDir(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
+function copyDirWithModeAndCallback(src: string, dest: string, mode: number, callback: AsyncCallback<void, Array<ConflictFiles>>): void;
+
+/**
+ * Copy directory.
+ *
+ * @throws { BusinessError } 13900015 - File exists
+ * @syscap SystemCapability.FileManagement.File.FileIO
+ * @since 20
+ */
+overload copyDir {copyDirWithMode, copyDirWithCallback, copyDirWithModeAndCallback }
 
 /**
  * Copy directory with sync interface.