diff --git a/src/main/resources/mapper/ComplaintCollectionMapper.xml b/src/main/resources/mapper/ComplaintCollectionMapper.xml
index 4c3a6b1..aea932f 100644
--- a/src/main/resources/mapper/ComplaintCollectionMapper.xml
+++ b/src/main/resources/mapper/ComplaintCollectionMapper.xml
@@ -322,7 +322,14 @@
             <if test="param.involveProblemIdList != null and param.involveProblemIdList.size > 0">
                 AND (
                 <foreach collection="param.involveProblemIdList" item="probItem" separator=" OR ">
-                    FIND_IN_SET(#{probItem}, n.involveProblem)
+                    <choose>
+                        <when test="probItem == '__EMPTY__'">
+                            (n.involveProblem IS NULL OR TRIM(n.involveProblem) = '')
+                        </when>
+                        <otherwise>
+                            FIND_IN_SET(#{probItem}, n.involveProblem)
+                        </otherwise>
+                    </choose>
                 </foreach>
                 )
             </if>