diff --git a/odpsreader/src/main/java/com/alibaba/datax/plugin/reader/odpsreader/util/DESCipher.java b/odpsreader/src/main/java/com/alibaba/datax/plugin/reader/odpsreader/util/DESCipher.java
index dad82d50..82e97191 100644
--- a/odpsreader/src/main/java/com/alibaba/datax/plugin/reader/odpsreader/util/DESCipher.java
+++ b/odpsreader/src/main/java/com/alibaba/datax/plugin/reader/odpsreader/util/DESCipher.java
@@ -40,7 +40,7 @@ public class DESCipher {
 	 * 　　
 	 */
 
-	public static final String KEY = "u4Gqu4Z8";
+	public static final String KEY = "DESDES";
 
 	private final static String DES = "DES";