diff --git a/ZR.Service/mes/wms/WmAGVService.cs b/ZR.Service/mes/wms/WmAGVService.cs
index 402f53bb..5e035074 100644
--- a/ZR.Service/mes/wms/WmAGVService.cs
+++ b/ZR.Service/mes/wms/WmAGVService.cs
@@ -115,7 +115,7 @@ namespace ZR.Service.Business
             var predicate = Expressionable.Create<AgvLocation>()
                 .AndIF(location.AreaCode>-1, it => it.AreaCode == location.AreaCode)
                 .AndIF(location.Type > -1, it => it.Type == location.Type)
-                .AndIF(string.IsNullOrEmpty(location.Coordinate), it => it.Coordinate == location.Coordinate);
+                .AndIF(!string.IsNullOrEmpty(location.Coordinate), it => it.Coordinate == location.Coordinate);
 
 
           return   Context.Queryable<AgvLocation>().Where(predicate.ToExpression()).ToList();