diff --git a/udf-starter-file-aliyun-oss-api/src/main/java/org/itkk/udf/file/aliyun/oss/api/OssWarpper.java b/udf-starter-file-aliyun-oss-api/src/main/java/org/itkk/udf/file/aliyun/oss/api/OssWarpper.java
index 2a65737..1dc022c 100644
--- a/udf-starter-file-aliyun-oss-api/src/main/java/org/itkk/udf/file/aliyun/oss/api/OssWarpper.java
+++ b/udf-starter-file-aliyun-oss-api/src/main/java/org/itkk/udf/file/aliyun/oss/api/OssWarpper.java
@@ -39,6 +39,11 @@ public class OssWarpper {
      */
     private static final String MSG_2 = "未定义";
 
+    /**
+     * SEPARATOR
+     */
+    private static final String SEPARATOR = "/";
+
     /**
      * MAX_KEYS
      */
@@ -91,6 +96,7 @@ public class OssWarpper {
             ObjectListing objectListing;
             do {
                 objectListing = client.listObjects(new ListObjectsRequest(path.getBucketName())
+                        .withDelimiter(SEPARATOR)
                         .withMarker(nextMarker)
                         .withPrefix(keyPrefix)
                         .withMaxKeys(MAX_KEYS)