diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java b/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java
index f345258d..194a17ab 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java
@@ -715,9 +715,10 @@ public class AppMaster {
             String otaurl = jsonObject.optString("otaurl", null);
             String oldurl = jsonObject.optString("oldurl", null);
             String appurl = jsonObject.optString("appurl", null);
-            String checkMd5 = jsonObject.optString("checkMd5", null);
+            String checkMd5 = jsonObject.optString("md5", null);
+            String key = jsonObject.optString("key", null);
             if (!TextUtils.isEmpty(otaurl)) {
-                upgradeAppOta(cid, cmd, otaurl, oldurl, appurl, checkMd5);
+                upgradeAppOta(cid, cmd, otaurl, oldurl, appurl, checkMd5, key);
             }
         }
     }
@@ -1033,7 +1034,7 @@ public class AppMaster {
         }
     }
 
-    private void upgradeAppOta(long cid, String action, String otaurl, String oldurl, String newurl, String checkMd5) {
+    private void upgradeAppOta(long cid, String action, String otaurl, String oldurl, String newurl, String checkMd5, String key) {
         mService.logger.warning("Recv upgradeAppOta Cmd: url=" + otaurl);
         if (StringUtils.isEmpty(otaurl) || StringUtils.isEmpty(oldurl) || StringUtils.isEmpty(newurl)) {
             mService.logger.warning("upgradeAppOta otaurl,oldurl或者newurl缺失");
@@ -1046,7 +1047,7 @@ public class AppMaster {
             path.mkdirs();
         }
         //Patch存储路径
-        File patchFile = new File(path, otaurlMd5 + ".patch");
+        File patchFile = new File(path, key + "_" + otaurlMd5 + ".patch");
         if (patchFile.exists()) {
             patchFile.delete();
         }
@@ -1055,11 +1056,14 @@ public class AppMaster {
         //老的Apk路径
         String oldurlMd5 = MD5Util.md5(oldurl);//获取URL的Md5
         File oldApk = new File(path, oldurlMd5 + ".apk");
+        if (!oldApk.exists()) {
+            oldApk = new File(path, key + "_" + oldurlMd5 + ".apk");
+        }
         String oldApkPath = oldApk.getAbsolutePath();
 
         //新的Apk路径
         String newurlMd5 = MD5Util.md5(newurl);//获取URL的Md5
-        File newApk = new File(path, newurlMd5 + ".apk");
+        File newApk = new File(path, key + "_" + newurlMd5 + ".apk");
         String newApkPath = newApk.getAbsolutePath();
 
         FileDownloader dl = new FileDownloader();
@@ -1083,6 +1087,9 @@ public class AppMaster {
                     if (b) {
                         String fileMd5 = MD5Util.getFileMd5(newApk.getAbsolutePath());
                         if (checkMd5 != null && checkMd5.equals(fileMd5)) {
+                            //删除增量更新包和老的apk包
+                            patchFile.delete();
+                            oldApk.delete();
                             SysApi.installApk(context, newApkPath, context.getPackageName(), true);
                             sendResult(cid, 1, action, action + ":" + mCmdid + " is installing");
                         }