diff --git a/anomaly/src/main/resources/mapper/AbnormalBillMapper.xml b/anomaly/src/main/resources/mapper/AbnormalBillMapper.xml
index 5c25ee12..68c9c2ff 100644
--- a/anomaly/src/main/resources/mapper/AbnormalBillMapper.xml
+++ b/anomaly/src/main/resources/mapper/AbnormalBillMapper.xml
@@ -1052,7 +1052,7 @@
 
                 </if>
                 <if test="abnormalBill.productionCategory != null and abnormalBill.productionCategory != ''">
-                    AND zab.PRODUCT_CATEGORY LIKE '%${abnormalBill.productionCategory}'
+                    AND zab.PRODUCT_CATEGORY = #{abnormalBill.productionCategory}
                 </if>
 
                 <if test="abnormalBill.itemDescription !=null and abnormalBill.itemDescription!=''">