diff --git a/sdk/storage/src/adapters/oss.adapter.ts b/sdk/storage/src/adapters/oss.adapter.ts
index 1d98bd09e5..a73cf41f2e 100644
--- a/sdk/storage/src/adapters/oss.adapter.ts
+++ b/sdk/storage/src/adapters/oss.adapter.ts
@@ -341,12 +341,7 @@ export class OssStorageAdapter implements IStorage {
   async copyObjectInSelfBucket(params: CopyObjectParams): Promise<CopyObjectResult> {
     const { sourceKey, targetKey } = params;
 
-    const encodedSourceKey = sourceKey
-      .split('/')
-      .map((segment) => encodeURIComponent(segment))
-      .join('/');
-
-    await this.client.copy(encodedSourceKey, targetKey);
+    await this.client.copy(targetKey, sourceKey);
 
     return {
       bucket: this.options.bucket,