diff --git a/main/java/shkd/repc/iwork/IWorkParticipantPlugin.java b/main/java/shkd/repc/iwork/IWorkParticipantPlugin.java
new file mode 100644
index 0000000..f845d94
--- /dev/null
+++ b/main/java/shkd/repc/iwork/IWorkParticipantPlugin.java
@@ -0,0 +1,118 @@
+package shkd.repc.iwork;
+
+import kd.bos.dataentity.entity.DynamicObject;
+import kd.bos.dataentity.entity.DynamicObjectCollection;
+import kd.bos.orm.query.QCP;
+import kd.bos.orm.query.QFilter;
+import kd.bos.servicehelper.BusinessDataServiceHelper;
+import kd.bos.workflow.api.AgentExecution;
+import kd.bos.workflow.api.WorkflowElement;
+import kd.bos.workflow.engine.extitf.IWorkflowPlugin;
+
+import java.util.List;
+
+public class IWorkParticipantPlugin implements IWorkflowPlugin {
+
+    @Override
+    public List<Long> calcUserIds(AgentExecution execution) {
+        List<Long> currentApprover = execution.getCurrentApprover(); // 获取当前节点的审批人
+
+        String businessKey = execution.getBusinessKey(); // 单据的BusinessKey(业务ID)
+        String entityNumber = execution.getEntityNumber(); // 单据实体编码
+        DynamicObject entity = BusinessDataServiceHelper.loadSingle(businessKey, entityNumber);
+
+
+        //recon_designchgbill(涉及变更)  供应商:designunit(设计单位)
+        //recon_chgauditorderbill(工程指令) 供应商:construnit(施工单位)
+        //recon_rewarddeductbill(奖励扣款) 供应商存在分录:rewarddeductentry(奖惩单分录) 供应商:entry_supplier(供应商)
+
+        if (entity != null) {
+            switch (entityNumber) {
+                case "recon_designchgbill":
+                    getApprover(entity, currentApprover, "designunit");
+                    break;
+                case "recon_chgauditorderbill":
+                    getApprover(entity, currentApprover, "construnit");
+                    break;
+                case "recon_rewarddeductbill":
+                    getApprovers(entity, currentApprover, "rewarddeductentry", "entry_supplier");
+                    break;
+                default:
+                    // 处理未定义的实体编码的情况（可选）
+                    break;
+            }
+        }
+
+        return currentApprover;
+    }
+
+    /**
+     * 根据供应商名称获取联系人，并添加到传阅人中
+     * @param entity 当前单据
+     * @param currentApprover 当前审批人
+     * @param supplierTitle 供应商标识
+     * @return
+     */
+    public static List<Long> getApprover(DynamicObject entity, List<Long> currentApprover, String supplierTitle) {
+        if (entity != null) {
+            DynamicObject preSupplier = entity.getDynamicObject(supplierTitle);
+            if (preSupplier != null) {
+                preSupplier = BusinessDataServiceHelper.loadSingle(preSupplier.getPkValue(), "resm_official_supplier"); // 正式供应商
+                DynamicObjectCollection entryLinkmans = preSupplier.getDynamicObjectCollection("entry_linkman"); // 联系人
+
+                for (DynamicObject entryLinkman : entryLinkmans) {
+                    if (entryLinkman.getBoolean("isopenaccount")) {
+                        String contactPerson = entryLinkman.getString("contactperson"); // 名字
+                        addUserToApprover(contactPerson, currentApprover);
+                    }
+                }
+            }
+        }
+        return currentApprover;
+    }
+
+    /**
+     * 根据供应商名称获取联系人，并添加到传阅人中
+     * @param entity 当前单据
+     * @param currentApprover 当前审批人
+     * @param supplierEntry 供应商分录标识
+     * @param supplierTitle 供应商标识
+     * @return
+     */
+    public static List<Long> getApprovers(DynamicObject entity, List<Long> currentApprover, String supplierEntry, String supplierTitle) {
+        if (entity != null) {
+            DynamicObjectCollection collections = entity.getDynamicObjectCollection(supplierEntry);
+            for (DynamicObject collection : collections) {
+                DynamicObject preSupplier = collection.getDynamicObject(supplierTitle);
+                if (preSupplier != null) {
+                    preSupplier = BusinessDataServiceHelper.loadSingle(preSupplier.getPkValue(), "resm_official_supplier"); // 正式供应商
+                    DynamicObjectCollection entryLinkmans = preSupplier.getDynamicObjectCollection("entry_linkman"); // 联系人
+
+                    for (DynamicObject entryLinkman : entryLinkmans) {
+                        if (entryLinkman.getBoolean("isopenaccount")) {
+                            String contactPerson = entryLinkman.getString("contactperson"); // 名字
+                            addUserToApprover(contactPerson, currentApprover);
+                        }
+                    }
+                }
+            }
+        }
+        return currentApprover;
+    }
+
+    /**
+     * 将用户添加到当前审批人列表中
+     * @param contactPerson 联系人姓名
+     * @param currentApprover 当前审批人列表
+     */
+    private static void addUserToApprover(String contactPerson, List<Long> currentApprover) {
+        if (contactPerson != null && !contactPerson.isEmpty()) {
+            QFilter qFilter = new QFilter("name", QCP.equals, contactPerson);
+            DynamicObject bosUser = BusinessDataServiceHelper.loadSingle("bos_user", new QFilter[]{qFilter});
+            if (bosUser != null) {
+                currentApprover.add(bosUser.getLong("id"));
+            }
+        }
+    }
+
+}