diff --git a/code/zcdev/zcgj-zcdev-zcdev-pr/src/main/java/zcgj/zcdev/zcdev/pr/plugin/operate/InInvoiceUseCkOp.java b/code/zcdev/zcgj-zcdev-zcdev-pr/src/main/java/zcgj/zcdev/zcdev/pr/plugin/operate/InInvoiceUseCkOp.java
new file mode 100644
index 0000000..7f2bd90
--- /dev/null
+++ b/code/zcdev/zcgj-zcdev-zcdev-pr/src/main/java/zcgj/zcdev/zcdev/pr/plugin/operate/InInvoiceUseCkOp.java
@@ -0,0 +1,59 @@
+package zcgj.zcdev.zcdev.pr.plugin.operate;
+
+import kd.bos.dataentity.entity.DynamicObject;
+import kd.bos.dataentity.entity.DynamicObjectCollection;
+import kd.bos.dataentity.utils.StringUtils;
+import kd.bos.entity.ExtendedDataEntity;
+import kd.bos.entity.plugin.AbstractOperationServicePlugIn;
+import kd.bos.entity.plugin.AddValidatorsEventArgs;
+import kd.bos.entity.plugin.PreparePropertysEventArgs;
+import kd.bos.entity.validate.AbstractValidator;
+import kd.bos.orm.query.QCP;
+import kd.bos.orm.query.QFilter;
+import kd.bos.servicehelper.BusinessDataServiceHelper;
+
+/**
+ * 进项发票占用校验
+ */
+public class InInvoiceUseCkOp  extends AbstractOperationServicePlugIn {
+
+    public void onPreparePropertys(PreparePropertysEventArgs e) {
+        super.onPreparePropertys(e);
+        e.getFieldKeys().add("serialno");
+    }
+
+    @Override
+    public void onAddValidators(AddValidatorsEventArgs e) {
+        super.onAddValidators(e);
+        e.getValidators().add(new ValidatorExt());
+    }
+
+    class ValidatorExt extends AbstractValidator {
+        @Override
+        public void validate() {
+            ExtendedDataEntity[] extendedDataEntities = this.getDataEntities();
+            for (ExtendedDataEntity extendedDataEntity : extendedDataEntities) {
+                DynamicObject dataEntity = extendedDataEntity.getDataEntity();
+                String serialno = dataEntity.getString("serialno");
+                if(!StringUtils.isEmpty(serialno)) {
+                    QFilter filterOrgDepId = new QFilter("serial_no", QCP.equals,serialno);
+                    DynamicObject[] xpenseRelation = BusinessDataServiceHelper.load("rim_expense_relation", "number,expense_num", new QFilter[]{filterOrgDepId});
+                    if(xpenseRelation != null && xpenseRelation.length > 0) {
+                        this.addFatalErrorMessage(extendedDataEntity, String.format("当前发票已被单据%s绑定，不允许反审核！",xpenseRelation[0].getString("expense_num")));
+                    }
+                    /*DynamicObject zcgjAccounttype = dynamicObject.getDynamicObject("zcgj_accounttype");
+                    if(zcgjAccounttype == null){
+                        this.addFatalErrorMessage(extendedDataEntity, String.format("设备维修信息，第%d行科目属性不能为空！",i));
+                        return;
+                    }
+                    String number = zcgjAccounttype.getString("number");
+                    DynamicObject cbs = dynamicObject.getDynamicObject("zcgj_pa_process");
+                    if((StringUtils.equals(number, "FL001") || StringUtils.equals(number, "FL013") ) && cbs == null ){ //生成成本时，工序必录
+                        this.addFatalErrorMessage(extendedDataEntity, String.format("设备维修信息，第%d行工序不能为空！",i));
+                    }*/
+
+                }
+            }
+        }
+    }
+}