diff --git a/business/model/dao/dao_bz.go b/business/model/dao/dao_bz.go
index c9f95ff41..d9ad64b58 100644
--- a/business/model/dao/dao_bz.go
+++ b/business/model/dao/dao_bz.go
@@ -54,11 +54,7 @@ func UpdateEntityByKV(db *DaoDB, item interface{}, kvs map[string]interface{}, c
 			qs = qs.Filter(k, v)
 		}
 	}
-	for k, v := range kvs {
-		if v == "" || v == nil {
-			delete(kvs, k)
-		}
-	}
+
 	num, err = qs.Update(kvs)
 	if err != nil && !IsDuplicateError(err) {
 		globals.SugarLogger.Errorf("UpdateEntityByKV %s failed with error:%v", reflect.TypeOf(item).Name(), err)