diff --git a/server/game2006service/tasks/fragment.js b/server/game2006service/tasks/fragment.js
index 41545e51..003d6d92 100644
--- a/server/game2006service/tasks/fragment.js
+++ b/server/game2006service/tasks/fragment.js
@@ -12,6 +12,8 @@ const PVE_TYPE = 1;
 const PVP_RATIO = 0.6;
 const PVE_RATIO = 0.4;
 
+const ITEM_PRE = 'item_';
+
 class Fragment {
 
   async start() {
@@ -162,14 +164,14 @@ class Fragment {
               if (allocedNum) {
                 remainNum = Math.max(0, remainNum - allocedNum);
               }
-              value.set(element, remainNum);
+              value.set(ITEM_PRE + element, remainNum);
             } else {
               const allocedNum = data.get(element);
               let remainNum = Math.floor(value.get('normalGunNum') / remainHour);
               if (allocedNum) {
                 remainNum = Math.max(0, remainNum - allocedNum);
               }
-              value.set(element, remainNum);
+              value.set(ITEM_PRE + element, remainNum);
             }
           }
         );//end forEach