diff --git a/yudao-ui-admin/src/api/bpm/task.js b/yudao-ui-admin/src/api/bpm/task.js
index aa32263f3..359c43af2 100644
--- a/yudao-ui-admin/src/api/bpm/task.js
+++ b/yudao-ui-admin/src/api/bpm/task.js
@@ -61,3 +61,25 @@ export function getTaskListByProcessInstanceId(processInstanceId) {
     method: 'get',
   })
 }
+export function getReturnList(taskId) {
+  return request({
+    url: '/bpm/task/get-return-list?taskId='+ taskId,
+    method: 'get',
+  })
+}
+
+
+export function returnTask(data) {
+  return request({
+    url: '/bpm/task/return',
+    method: 'PUT',
+    data: data
+  })
+}
+export function delegateTask(data) {
+  return request({
+    url: '/bpm/task/delegate',
+    method: 'PUT',
+    data: data
+  })
+}
diff --git a/yudao-ui-admin/src/components/bpmnProcessDesigner/package/designer/ProcessViewer.vue b/yudao-ui-admin/src/components/bpmnProcessDesigner/package/designer/ProcessViewer.vue
index de1a693f9..2c6d83991 100644
--- a/yudao-ui-admin/src/components/bpmnProcessDesigner/package/designer/ProcessViewer.vue
+++ b/yudao-ui-admin/src/components/bpmnProcessDesigner/package/designer/ProcessViewer.vue
@@ -233,6 +233,10 @@ export default {
         return 'highlight-reject';
       } else if (result === 4) { // 已取消
         return 'highlight-cancel';
+      } else if (result === 5) { // 已退回
+        return 'highlight-back';
+      } else if (result === 6) { // 已委派
+        return 'highlight-todo';
       }
       return '';
     },
@@ -475,7 +479,33 @@ export default {
 :deep(.highlight-cancel.djs-connection > .djs-visual > path) {
   stroke: grey !important;
 }
+/**驳回 */
+.highlight-back.djs-connection > .djs-visual > path {
+  stroke: #FFBA00 !important;
+  stroke-dasharray: 4px !important;
+  fill-opacity: 0.2 !important;
+}
 
+.highlight-back.djs-shape .djs-visual > :nth-child(1) {
+  fill: #FFBA00 !important;
+  stroke: #FFBA00 !important;
+  stroke-dasharray: 4px !important;
+  fill-opacity: 0.2 !important;
+}
+
+:deep(.highlight-back.djs-connection > .djs-visual > path) {
+  stroke: #FFBA00 !important;
+  stroke-dasharray: 4px !important;
+  fill-opacity: 0.2 !important;
+  marker-end: url(#sequenceflow-end-_E7DFDF-_E7DFDF-803g1kf6zwzmcig1y2ulm5egr);
+}
+
+:deep(.highlight-back.djs-shape .djs-visual > :nth-child(1)) {
+  fill: #FFBA00 !important;
+  stroke: #FFBA00 !important;
+  stroke-dasharray: 4px !important;
+  fill-opacity: 0.2 !important;
+}
 .element-overlays {
   box-sizing: border-box;
   padding: 8px;
diff --git a/yudao-ui-admin/src/views/bpm/processInstance/detail.vue b/yudao-ui-admin/src/views/bpm/processInstance/detail.vue
index 7ecc53438..aad82e0d9 100644
--- a/yudao-ui-admin/src/views/bpm/processInstance/detail.vue
+++ b/yudao-ui-admin/src/views/bpm/processInstance/detail.vue
@@ -5,7 +5,7 @@
       <div slot="header" class="clearfix">
         <span class="el-icon-picture-outline">审批任务【{{ item.name }}】</span>
       </div>
-      <el-col :span="16" :offset="6" >
+      <el-col :span="16" :offset="6">
         <el-form :ref="'form' + index" :model="auditForms[index]" :rules="auditRule" label-width="100px">
           <el-form-item label="流程名" v-if="processInstance && processInstance.name">
             {{ processInstance.name }}
@@ -15,15 +15,20 @@
             <el-tag type="info" size="mini">{{ processInstance.startUser.deptName }}</el-tag>
           </el-form-item>
           <el-form-item label="审批建议" prop="reason">
-            <el-input type="textarea" v-model="auditForms[index].reason" placeholder="请输入审批建议" />
+            <el-input type="textarea" v-model="auditForms[index].reason" placeholder="请输入审批建议"/>
           </el-form-item>
         </el-form>
         <div style="margin-left: 10%; margin-bottom: 20px; font-size: 14px;">
-          <el-button  icon="el-icon-edit-outline" type="success" size="mini" @click="handleAudit(item, true)">通过</el-button>
-          <el-button  icon="el-icon-circle-close" type="danger" size="mini" @click="handleAudit(item, false)">不通过</el-button>
-          <el-button  icon="el-icon-edit-outline" type="primary" size="mini" @click="handleUpdateAssignee(item)">转办</el-button>
-          <el-button icon="el-icon-edit-outline" type="primary" size="mini" @click="handleDelegate(item)">委派</el-button>
-          <el-button icon="el-icon-refresh-left" type="warning" size="mini" @click="handleBack(item)">退回</el-button>
+          <el-button icon="el-icon-edit-outline" type="success" size="mini" @click="handleAudit(item, true)">通过
+          </el-button>
+          <el-button icon="el-icon-circle-close" type="danger" size="mini" @click="handleAudit(item, false)">不通过
+          </el-button>
+          <el-button icon="el-icon-edit-outline" type="primary" size="mini" @click="handleUpdateAssignee(item)">转办
+          </el-button>
+          <el-button icon="el-icon-edit-outline" type="primary" size="mini" @click="handleDelegate(item)">委派
+          </el-button>
+          <el-button icon="el-icon-refresh-left" type="warning" size="mini" @click="handleBackList(item)">退回
+          </el-button>
         </div>
       </el-col>
     </el-card>
@@ -34,8 +39,8 @@
       </div>
       <el-col v-if="this.processInstance.processDefinition && this.processInstance.processDefinition.formType === 10"
               :span="16" :offset="6">
-        <div >
-          <parser :key="new Date().getTime()" :form-conf="detailForm" />
+        <div>
+          <parser :key="new Date().getTime()" :form-conf="detailForm"/>
         </div>
       </el-col>
       <div v-if="this.processInstance.processDefinition && this.processInstance.processDefinition.formType === 20">
@@ -48,7 +53,7 @@
       <div slot="header" class="clearfix">
         <span class="el-icon-picture-outline">审批记录</span>
       </div>
-      <el-col :span="16" :offset="4" >
+      <el-col :span="16" :offset="4">
         <div class="block">
           <el-timeline>
             <el-timeline-item v-for="(item, index) in tasks" :key="index"
@@ -62,9 +67,12 @@
                 <label style="font-weight: normal" v-if="item.createTime">创建时间：</label>
                 <label style="color:#8a909c; font-weight: normal">{{ parseTime(item.createTime) }}</label>
                 <label v-if="item.endTime" style="margin-left: 30px;font-weight: normal">审批时间：</label>
-                <label v-if="item.endTime" style="color:#8a909c;font-weight: normal"> {{ parseTime(item.endTime) }}</label>
+                <label v-if="item.endTime" style="color:#8a909c;font-weight: normal"> {{
+                    parseTime(item.endTime)
+                  }}</label>
                 <label v-if="item.durationInMillis" style="margin-left: 30px;font-weight: normal">耗时：</label>
-                <label v-if="item.durationInMillis" style="color:#8a909c;font-weight: normal"> {{ getDateStar(item.durationInMillis) }} </label>
+                <label v-if="item.durationInMillis" style="color:#8a909c;font-weight: normal">
+                  {{ getDateStar(item.durationInMillis) }} </label>
                 <p v-if="item.reason">
                   <el-tag :type="getTimelineItemType(item)">{{ item.reason }}</el-tag>
                 </p>
@@ -81,15 +89,16 @@
         <span class="el-icon-picture-outline">流程图</span>
       </div>
       <my-process-viewer key="designer" v-model="bpmnXML" v-bind="bpmnControlForm" :activityData="activityList"
-            :processInstanceData="processInstance" :taskData="tasks" />
+                         :processInstanceData="processInstance" :taskData="tasks"/>
     </el-card>
 
-    <!-- 对话框(转派审批人) -->
-    <el-dialog title="转派审批人" :visible.sync="updateAssignee.open" width="500px" append-to-body>
+    <!-- 对话框(转办审批人) -->
+    <el-dialog title="转办审批人" :visible.sync="updateAssignee.open" width="500px" append-to-body>
       <el-form ref="updateAssigneeForm" :model="updateAssignee.form" :rules="updateAssignee.rules" label-width="110px">
         <el-form-item label="新审批人" prop="assigneeUserId">
           <el-select v-model="updateAssignee.form.assigneeUserId" clearable style="width: 100%">
-            <el-option v-for="item in userOptions" :key="parseInt(item.id)" :label="item.nickname" :value="parseInt(item.id)" />
+            <el-option v-for="item in userOptions" :key="parseInt(item.id)" :label="item.nickname"
+                       :value="parseInt(item.id)"/>
           </el-select>
         </el-form-item>
       </el-form>
@@ -98,17 +107,64 @@
         <el-button @click="cancelUpdateAssigneeForm">取 消</el-button>
       </div>
     </el-dialog>
+    <!-- 对话框(委派审批人) -->
+    <el-dialog title="委派审批人" :visible.sync="updateDelegate.open" width="500px" append-to-body>
+      <el-form ref="updateDelegateForm" :model="updateDelegate.form" :rules="updateDelegate.rules" label-width="110px">
+        <el-form-item label="新审批人" prop="assigneeUserId">
+          <el-select v-model="updateDelegate.form.delegateUserId" clearable style="width: 100%">
+            <el-option v-for="item in userOptions" :key="parseInt(item.id)" :label="item.nickname"
+                       :value="parseInt(item.id)"/>
+          </el-select>
+        </el-form-item>
+        <el-form-item label="委派理由" prop="reason">
+          <el-input v-model="updateDelegate.form.reason" clearable placeholder="请输入委派理由"/>
+        </el-form-item>
+      </el-form>
+      <div slot="footer" class="dialog-footer">
+        <el-button type="primary" @click="submitUpdateDelegateForm">确 定</el-button>
+        <el-button @click="cancelUpdateDelegateForm">取 消</el-button>
+      </div>
+    </el-dialog>
+    <!--退回流程-->
+    <el-dialog title="退回流程" :visible.sync="returnOpen" width="40%" append-to-body>
+      <el-form ref="formRef" v-loading="formLoading" :model="formData" :rules="formRules" label-width="110px">
+        <el-form-item label="退回节点" prop="targetDefinitionKey">
+          <el-select v-model="formData.targetDefinitionKey" clearable style="width: 100%">
+            <el-option
+              v-for="item in returnList"
+              :key="item.definitionKey"
+              :label="item.name"
+              :value="item.definitionKey"
+            />
+          </el-select>
+        </el-form-item>
+        <el-form-item label="回退理由" prop="reason">
+          <el-input v-model="formData.reason" clearable placeholder="请输入回退理由"/>
+        </el-form-item>
+      </el-form>
+      <span slot="footer" class="dialog-footer">
+        <el-button @click="returnOpen = false">取 消</el-button>
+        <el-button :disabled="formLoading" type="primary" @click="submitReturn">确 定</el-button>
+      </span>
+    </el-dialog>
   </div>
 </template>
 
 <script>
 import {getProcessDefinitionBpmnXML} from "@/api/bpm/definition";
-import {DICT_TYPE, getDictDatas} from "@/utils/dict";
 import store from "@/store";
 import {decodeFields} from "@/utils/formGenerator";
 import Parser from '@/components/parser/Parser'
 import {getProcessInstance} from "@/api/bpm/processInstance";
-import {approveTask, getTaskListByProcessInstanceId, rejectTask, updateTaskAssignee} from "@/api/bpm/task";
+import {
+  approveTask,
+  delegateTask,
+  getReturnList,
+  getTaskListByProcessInstanceId,
+  rejectTask,
+  returnTask,
+  updateTaskAssignee,
+} from "@/api/bpm/task";
 import {getDate} from "@/utils/dateUtils";
 import {listSimpleUsers} from "@/api/system/user";
 import {getActivityList} from "@/api/bpm/activity";
@@ -127,12 +183,23 @@ export default {
       // 流程实例
       id: undefined, // 流程实例的编号
       processInstance: {},
-
+      formLoading: false,
       // 流程表单详情
       detailForm: {
         fields: []
       },
-
+      //回退列表数据
+      returnList: [],
+      formData: {
+        id: '',
+        targetDefinitionKey: undefined,
+        reason: ''
+      },
+      formRules: {
+        targetDefinitionKey: [{required: true, message: '必须选择回退节点', trigger: 'change'}],
+        reason: [{required: true, message: '回退理由不能为空', trigger: 'blur'}]
+      },
+      returnOpen: false,
       // BPMN 数据
       bpmnXML: null,
       bpmnControlForm: {
@@ -148,9 +215,8 @@ export default {
       runningTasks: [],
       auditForms: [],
       auditRule: {
-        reason: [{ required: true, message: "审批建议不能为空", trigger: "blur" }],
+        reason: [{required: true, message: "审批建议不能为空", trigger: "blur"}],
       },
-
       // 转派审批人
       userOptions: [],
       updateAssignee: {
@@ -159,7 +225,18 @@ export default {
           assigneeUserId: undefined,
         },
         rules: {
-          assigneeUserId: [{ required: true, message: "新审批人不能为空", trigger: "change" }],
+          assigneeUserId: [{required: true, message: "新审批人不能为空", trigger: "change"}],
+        }
+      },
+      updateDelegate: {
+        open: false,
+        form: {
+          delegateUserId: undefined,
+          reason: ''
+        },
+        rules: {
+          delegateUserId: [{required: true, message: "新审批人不能为空", trigger: "change"}],
+          reason: [{required: true, message: '委派理由不能为空', trigger: 'blur'}]
         }
       }
     };
@@ -193,7 +270,7 @@ export default {
 
         //将业务表单，注册为动态组件
         const path = this.processInstance.processDefinition.formCustomViewPath;
-        Vue.component("async-biz-form-component", function(resolve) {
+        Vue.component("async-biz-form-component", function (resolve) {
           require([`@/views${path}`], resolve);
         });
 
@@ -260,7 +337,7 @@ export default {
         // 需要审核的记录
         const userId = store.getters.userId;
         this.tasks.forEach(task => {
-          if (task.result !== 1) { // 只有待处理才需要
+          if (task.result !== 1 && task.result !== 6) { // 只有待处理才需要
             return;
           }
           if (!task.assigneeUser || task.assigneeUser.id !== userId) { // 自己不是处理人
@@ -292,6 +369,9 @@ export default {
       if (item.result === 4) {
         return 'el-icon-remove-outline';
       }
+      if (item.result === 5) {
+        return 'el-icon-back'
+      }
       return '';
     },
     getTimelineItemType(item) {
@@ -307,6 +387,12 @@ export default {
       if (item.result === 4) {
         return 'info';
       }
+      if (item.result === 5) {
+        return 'warning';
+      }
+      if (item.result === 6) {
+        return 'default'
+      }
       return '';
     },
     /** 处理审批通过和不通过的操作 */
@@ -333,7 +419,7 @@ export default {
         }
       });
     },
-    /** 处理转派审批人 */
+    /** 处理转办审批人 */
     handleUpdateAssignee(task) {
       // 设置表单
       this.resetUpdateAssigneeForm();
@@ -341,25 +427,25 @@ export default {
       // 设置为打开
       this.updateAssignee.open = true;
     },
-    /** 提交转派审批人 */
+    /** 提交转办审批人 */
     submitUpdateAssigneeForm() {
       this.$refs['updateAssigneeForm'].validate(valid => {
         if (!valid) {
           return;
         }
         updateTaskAssignee(this.updateAssignee.form).then(response => {
-          this.$modal.msgSuccess("转派任务成功！");
+          this.$modal.msgSuccess("转办任务成功！");
           this.updateAssignee.open = false;
           this.getDetail(); // 获得最新详情
         });
       });
     },
-    /** 取消转派审批人 */
+    /** 取消转办审批人 */
     cancelUpdateAssigneeForm() {
       this.updateAssignee.open = false;
       this.resetUpdateAssigneeForm();
     },
-    /** 重置转派审批人 */
+    /** 重置转办审批人 */
     resetUpdateAssigneeForm() {
       this.updateAssignee.form = {
         id: undefined,
@@ -367,22 +453,72 @@ export default {
       };
       this.resetForm("updateAssigneeForm");
     },
-    /** 处理审批退回的操作 */
+    /** 处理审批委派的操作 */
     handleDelegate(task) {
-      this.$modal.msgError("暂不支持【委派】功能，可以使用【转派】替代！");
+      //this.$modal.msgError("暂不支持【委派】功能，可以使用【转派】替代！");
+      this.resetUpdateDelegateForm();
+      this.updateDelegate.form.id = task.id;
+      // 设置为打开
+      this.updateDelegate.open = true;
+    },
+    /** 提交委派审批人 */
+    submitUpdateDelegateForm() {
+      this.$refs['updateDelegateForm'].validate(valid => {
+        if (!valid) {
+          return;
+        }
+        delegateTask(this.updateDelegate.form).then(response => {
+          this.$modal.msgSuccess("委派任务成功！");
+          this.updateDelegate.open = false;
+          this.getDetail(); // 获得最新详情
+        });
+      });
+    },
+    /** 取消委派审批人 */
+    cancelUpdateDelegateForm() {
+      this.updateDelegate.open = false;
+      this.resetUpdateDelegateForm();
+    },
+    /** 重置委派审批人 */
+    resetUpdateDelegateForm() {
+      this.updateDelegate.form = {
+        id: undefined,
+        delegateUserId: undefined,
+      };
+      this.resetForm("updateDelegateForm");
     },
     /** 处理审批退回的操作 */
-    handleBack(task) {
-      this.$modal.msgError("暂不支持【退回】功能！");
+    /** 返回退回节点列表 */
+    handleBackList(task) {
       // 可参考 http://blog.wya1.com/article/636697030/details/7296
-      // const data = {
-      //   id: task.id,
-      //   assigneeUserId: 1
-      // }
-      // backTask(data).then(response => {
-      //   this.$modal.msgSuccess("回退成功！");
-      //   this.getDetail(); // 获得最新详情
-      // });
+      getReturnList(task.id).then(response => {
+        this.returnList = response.data;
+        if (this.returnList.length == 0) {
+          this.$modal.msgError("当前没有可回退的节点！");
+          return;
+        }
+        this.formData.id = task.id;
+        this.returnOpen = true;
+      });
+
+    },
+    /** 提交退回任务 */
+    submitReturn() {
+      if (!this.formData.targetDefinitionKey) {
+        this.$modal.msgError("请选择退回节点！");
+      }
+      this.$refs['formRef'].validate(valid => {
+        if (!valid) {
+          return;
+        }
+        returnTask(this.formData).then(res => {
+          if (res.data) {
+            this.$modal.msgSuccess("回退成功！");
+            this.returnOpen = false;
+            this.getDetail();
+          }
+        });
+      });
     }
   }
 };