diff --git a/modules/i3plus-ext-mes-pcn-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/pcn/apiservice/serviceimpl/rulematch/MesEvcRuleMatchBackValueService.java b/modules/i3plus-ext-mes-pcn-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/pcn/apiservice/serviceimpl/rulematch/MesEvcRuleMatchBackValueService.java
index aac343c..b1fc627 100644
--- a/modules/i3plus-ext-mes-pcn-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/pcn/apiservice/serviceimpl/rulematch/MesEvcRuleMatchBackValueService.java
+++ b/modules/i3plus-ext-mes-pcn-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/pcn/apiservice/serviceimpl/rulematch/MesEvcRuleMatchBackValueService.java
@@ -33,9 +33,11 @@ public class MesEvcRuleMatchBackValueService implements IMesEquipVariableCfgRule
 
                 if (null == equipVariableCollectContext || StringUtils.isEmpty(equipVariableCollectContext.getEquipVariableValue())) continue;
 
+                if (StringUtils.isEmpty(filterSpecialChar(equipVariableCollectContext).getEquipVariableValue())) continue;
+
                 if (CollectionUtils.isEmpty(backList)) backList = new ArrayList<>();
 
-                backList.add(filterSpecialChar(equipVariableCollectContext));
+                backList.add(equipVariableCollectContext);
 
             }