diff --git a/src/main/resources/mapper/warehouse/HandlingUnitSpecialMapper.xml b/src/main/resources/mapper/warehouse/HandlingUnitSpecialMapper.xml
index fd40521..60485bf 100644
--- a/src/main/resources/mapper/warehouse/HandlingUnitSpecialMapper.xml
+++ b/src/main/resources/mapper/warehouse/HandlingUnitSpecialMapper.xml
@@ -67,7 +67,7 @@
             AND h.unit_id LIKE '%' + #{query.unitId} + '%'
         </if>
         <if test="query.partNo != null and query.partNo != ''">
-            AND h.part_no LIKE '%' + #{query.partNo} + '%'
+            AND h.part_no =  #{query.partNo}
         </if>
         <if test="query.batchNo != null and query.batchNo != ''">
             AND h.batch_no LIKE '%' + #{query.batchNo} + '%'