diff --git a/epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/service/screen/impl/IndexGroupDetailServiceImpl.java b/epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/service/screen/impl/IndexGroupDetailServiceImpl.java
index 6c22b360d6..0225c956c5 100644
--- a/epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/service/screen/impl/IndexGroupDetailServiceImpl.java
+++ b/epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/service/screen/impl/IndexGroupDetailServiceImpl.java
@@ -46,7 +46,6 @@ public class IndexGroupDetailServiceImpl extends BaseServiceImpl<IndexGroupDetai
         for (String code:indexCode){
             sb.append(code).append(StrConstant.COLON);
         }
-        sb = sb.deleteCharAt(sb.length());
-        return baseDao.getDetailListByParentCode(customerId,sb.toString());
+        return baseDao.getDetailListByParentCode(customerId,sb.deleteCharAt(sb.length()-1).toString());
     }
 }
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