diff --git a/emis-biz/src/main/java/com/xdadan/erp/emis/utils/WaybillHelper.java b/emis-biz/src/main/java/com/xdadan/erp/emis/utils/WaybillHelper.java
index 6c0a9efb0..01870a7a4 100644
--- a/emis-biz/src/main/java/com/xdadan/erp/emis/utils/WaybillHelper.java
+++ b/emis-biz/src/main/java/com/xdadan/erp/emis/utils/WaybillHelper.java
@@ -251,9 +251,9 @@ public class WaybillHelper {
     public static String removeUnSeeChar(String str) {
        if(!StringUtils.isEmpty(str)){
            return str.replaceAll("\\p{C}+", "").replaceAll("\\u00A0+", " ");
+       }else{
+           return " ";
        }
-
-       return str;
     }