diff --git a/emis-biz/src/main/resources/mapper/EmisWaybillMapper.xml b/emis-biz/src/main/resources/mapper/EmisWaybillMapper.xml
index d67725d57..f085b4f55 100644
--- a/emis-biz/src/main/resources/mapper/EmisWaybillMapper.xml
+++ b/emis-biz/src/main/resources/mapper/EmisWaybillMapper.xml
@@ -695,7 +695,7 @@
                 and a.bl_sign='1'
             </if>
 
-            <if test="blSign != null and blSign!='' and blSign == 0">
+            <if test="blSign != null  and blSign == 0">
                 and a.bl_sign!='1'
             </if>
 
@@ -1455,7 +1455,7 @@
                 and a.bl_sign='1'
             </if>
 
-            <if test="blSign != null and blSign!='' and blSign == 0">
+            <if test="blSign != null and blSign == 0">
                 and a.bl_sign!='1'
             </if>