diff --git a/ruoyi-flowable/src/main/java/com/ruoyi/flowable/utils/ModelUtils.java b/ruoyi-flowable/src/main/java/com/ruoyi/flowable/utils/ModelUtils.java
index f4bbca63..b9b18ff6 100644
--- a/ruoyi-flowable/src/main/java/com/ruoyi/flowable/utils/ModelUtils.java
+++ b/ruoyi-flowable/src/main/java/com/ruoyi/flowable/utils/ModelUtils.java
@@ -1,5 +1,6 @@
 package com.ruoyi.flowable.utils;
 
+import cn.hutool.core.util.ObjectUtil;
 import org.flowable.bpmn.converter.BpmnXMLConverter;
 import org.flowable.bpmn.model.Process;
 import org.flowable.bpmn.model.*;
@@ -92,6 +93,23 @@ public class ModelUtils {
         return null;
     }
 
+    public static UserTask getUserTaskByKey(BpmnModel model, String taskKey) {
+        Process process = model.getMainProcess();
+        FlowElement flowElement = process.getFlowElement(taskKey);
+        if (flowElement instanceof UserTask) {
+            return (UserTask) flowElement;
+        }
+        return null;
+    }
+
+    public static boolean isMultiInstance(BpmnModel model, String taskKey) {
+        UserTask userTask = getUserTaskByKey(model, taskKey);
+        if (ObjectUtil.isNotNull(userTask)) {
+            return userTask.hasMultiInstanceLoopCharacteristics();
+        }
+        return false;
+    }
+
     /**
      * 获取所有用户任务节点
      *
diff --git a/ruoyi-system/src/main/java/com/ruoyi/workflow/domain/bo/WfTaskBo.java b/ruoyi-system/src/main/java/com/ruoyi/workflow/domain/bo/WfTaskBo.java
index 73fd9c87..e9900ff7 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/workflow/domain/bo/WfTaskBo.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/workflow/domain/bo/WfTaskBo.java
@@ -57,4 +57,8 @@ public class WfTaskBo {
      * 抄送用户Id
      */
     private String copyUserIds;
+    /**
+     * 下一节点审批人
+     */
+    private String nextUserIds;
 }
diff --git a/ruoyi-system/src/main/java/com/ruoyi/workflow/service/impl/WfTaskServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/workflow/service/impl/WfTaskServiceImpl.java
index 657b71a2..467536c8 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/workflow/service/impl/WfTaskServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/workflow/service/impl/WfTaskServiceImpl.java
@@ -97,6 +97,10 @@ public class WfTaskServiceImpl extends FlowServiceFactory implements IWfTaskServ
         }
         // 设置任务节点名称
         taskBo.setTaskName(task.getName());
+        // 处理下一级审批人
+        if (StringUtils.isNotBlank(taskBo.getNextUserIds())) {
+            this.assignNextUsers(task.getProcessDefinitionId(), taskBo.getProcInsId(), taskBo.getNextUserIds());
+        }
         // 处理抄送用户
         if (!copyService.makeCopy(taskBo)) {
             throw new RuntimeException("抄送任务失败");
@@ -684,4 +688,54 @@ public class WfTaskServiceImpl extends FlowServiceFactory implements IWfTaskServ
             }
         }
     }
+
+    /**
+     * 指派下一任务审批人
+     * @param processDefId 流程定义id
+     * @param processInsId 流程实例id
+     * @param userIds 用户ids
+     */
+    private void assignNextUsers(String processDefId, String processInsId, String userIds) {
+        // 获取所有节点信息
+        List<Task> list = taskService.createTaskQuery()
+            .processInstanceId(processInsId)
+            .list();
+        if (list.size() == 0) {
+            return;
+        }
+        Queue<String> assignIds = CollUtil.newLinkedList(userIds.split(","));
+        if (list.size() == assignIds.size()) {
+            for (Task task : list) {
+                taskService.setAssignee(task.getId(), assignIds.poll());
+            }
+            return;
+        }
+        BpmnModel bpmnModel = repositoryService.getBpmnModel(processDefId);
+        // 优先处理非多实例任务
+        Iterator<Task> iterator = list.iterator();
+        while (iterator.hasNext()) {
+            Task task = iterator.next();
+            if (!ModelUtils.isMultiInstance(bpmnModel, task.getTaskDefinitionKey())) {
+                if (!assignIds.isEmpty()) {
+                    taskService.setAssignee(task.getId(), assignIds.poll());
+                }
+                iterator.remove();
+            }
+        }
+        // 若存在多实例任务，则进行动态加减签
+        if (CollUtil.isNotEmpty(list)) {
+            if (assignIds.isEmpty()) {
+                // 动态减签
+                for (Task task : list) {
+                    runtimeService.deleteMultiInstanceExecution(task.getExecutionId(), true);
+                }
+            } else {
+                // 动态加签
+                for (String assignId : assignIds) {
+                    Map<String, Object> assignVariables = Collections.singletonMap(BpmnXMLConstants.ATTRIBUTE_TASK_USER_ASSIGNEE, assignId);
+                    runtimeService.addMultiInstanceExecution(list.get(0).getTaskDefinitionKey(), list.get(0).getProcessInstanceId(), assignVariables);
+                }
+            }
+        }
+    }
 }
diff --git a/ruoyi-ui/src/views/workflow/work/detail.vue b/ruoyi-ui/src/views/workflow/work/detail.vue
index b4b9a4c9..681056a4 100644
--- a/ruoyi-ui/src/views/workflow/work/detail.vue
+++ b/ruoyi-ui/src/views/workflow/work/detail.vue
@@ -17,20 +17,31 @@
           </div>
           <el-row>
             <el-col :span="20" :offset="2">
-              <el-form ref="taskForm" :model="taskForm" :rules="rules" label-width="80px">
+              <el-form ref="taskForm" :model="taskForm" :rules="rules" label-width="120px">
                 <el-form-item label="审批意见" prop="comment">
                   <el-input type="textarea" :rows="5" v-model="taskForm.comment" placeholder="请输入 审批意见" />
                 </el-form-item>
                 <el-form-item label="抄送人" prop="copyUserIds">
                   <el-tag
                     :key="index"
-                    v-for="(item, index) in userData.copyUser"
+                    v-for="(item, index) in copyUser"
                     closable
                     :disable-transitions="false"
-                    @close="handleClose(item)">
-                    {{ item.label }}
+                    @close="handleClose('copy', item)">
+                    {{ item.nickName }}
                   </el-tag>
-                  <el-button class="button-new-tag" type="primary" icon="el-icon-plus" size="mini" circle @click="onSelectUsers" />
+                  <el-button class="button-new-tag" type="primary" icon="el-icon-plus" size="mini" circle @click="onSelectCopyUsers" />
+                </el-form-item>
+                <el-form-item label="指定审批人" prop="copyUserIds">
+                  <el-tag
+                    :key="index"
+                    v-for="(item, index) in nextUser"
+                    closable
+                    :disable-transitions="false"
+                    @close="handleClose('next', item)">
+                    {{ item.nickName }}
+                  </el-tag>
+                  <el-button class="button-new-tag" type="primary" icon="el-icon-plus" size="mini" circle @click="onSelectNextUsers" />
                 </el-form-item>
               </el-form>
             </el-col>
@@ -167,7 +178,7 @@
                     highlight-current-row
                     @current-change="changeCurrentUser"
                     @selection-change="handleSelectionChange">
-            <el-table-column v-if="userData.type === 'copy'" width="55" type="selection" />
+            <el-table-column v-if="userData.type === 'copy' || userData.type === 'next'" width="55" type="selection" />
             <el-table-column v-else width="30">
               <template slot-scope="scope">
                 <el-radio :label="scope.row.userId" v-model="currentUserId">{{''}}</el-radio>
@@ -292,11 +303,11 @@ export default {
       rejectTitle: null,
       userData: {
         title: '',
-        type: 'copy',
+        type: '',
         open: false,
-        currentUserId: null,
-        copyUser: [],
       },
+      copyUser: [],
+      nextUser: [],
       userMultipleSelection: [],
       userDialogTitle: '',
       userOpen: false
@@ -374,16 +385,27 @@ export default {
       }
     },
     // 关闭标签
-    handleClose(tag) {
+    handleClose(type, tag) {
       let userObj = this.userMultipleSelection.find(item => item.userId === tag.id);
       this.userMultipleSelection.splice(this.userMultipleSelection.indexOf(userObj), 1);
-      this.userData.copyUser.splice(this.userData.copyUser.indexOf(tag), 1);
-      // 设置抄送人ID
-      if (this.userData.copyUser && this.userData.copyUser.length > 0) {
-        const val = this.userData.copyUser.map(item => item.id);
-        this.taskForm.copyUserIds = val instanceof Array ? val.join(',') : val;
-      } else {
-        this.taskForm.copyUserIds = '';
+      if (type === 'copy') {
+        this.copyUser = this.userMultipleSelection;
+        // 设置抄送人ID
+        if (this.copyUser && this.copyUser.length > 0) {
+          const val = this.copyUser.map(item => item.id);
+          this.taskForm.copyUserIds = val instanceof Array ? val.join(',') : val;
+        } else {
+          this.taskForm.copyUserIds = '';
+        }
+      } else if (type === 'next') {
+        this.nextUser = this.userMultipleSelection;
+        // 设置抄送人ID
+        if (this.nextUser && this.nextUser.length > 0) {
+          const val = this.nextUser.map(item => item.id);
+          this.taskForm.nextUserIds = val instanceof Array ? val.join(',') : val;
+        } else {
+          this.taskForm.nextUserIds = '';
+        }
       }
     },
     /** 流程变量赋值 */
@@ -413,15 +435,20 @@ export default {
         this.formOpen = true
       })
     },
-    onSelectUsers() {
-      this.userData.title = '添加抄送人';
-      this.userData.type = 'copy';
+    onSelectCopyUsers() {
+      this.userMultipleSelection = this.copyUser;
+      this.onSelectUsers('添加抄送人', 'copy')
+    },
+    onSelectNextUsers() {
+      this.userMultipleSelection = this.nextUser;
+      this.onSelectUsers('指定审批人', 'next')
+    },
+    onSelectUsers(title, type) {
+      this.userData.title = title;
+      this.userData.type = type;
       this.getTreeSelect();
       this.getList()
       this.userData.open = true;
-      this.$nextTick(() => {
-        this.$refs.userTable.clearSelection();
-      });
     },
     /** 通过任务 */
     handleComplete() {
@@ -518,20 +545,20 @@ export default {
     },
     submitUserData() {
       let type = this.userData.type;
-      if (type === 'copy') {
+      if (type === 'copy' || type === 'next') {
         if (!this.userMultipleSelection || this.userMultipleSelection.length <= 0) {
           this.$modal.msgError("请选择用户");
           return false;
         }
-        this.userData.copyUser = this.userMultipleSelection.map(k => {
-          return { id: k.userId, label: k.nickName }
-        })
-        // 设置抄送人ID
-        if (this.userData.copyUser && this.userData.copyUser.length > 0) {
-          const val = this.userData.copyUser.map(item => item.id);
-          this.taskForm.copyUserIds = val instanceof Array ? val.join(',') : val;
-        } else {
-          this.taskForm.copyUserIds = '';
+        let userIds = this.userMultipleSelection.map(k => k.userId);
+        if (type === 'copy') {
+          // 设置抄送人ID信息
+          this.copyUser = this.userMultipleSelection;
+          this.taskForm.copyUserIds = userIds instanceof Array ? userIds.join(',') : userIds;
+        } else if (type === 'next') {
+          // 设置下一级审批人ID信息
+          this.nextUser = this.userMultipleSelection;
+          this.taskForm.nextUserIds = userIds instanceof Array ? userIds.join(',') : userIds;
         }
         this.userData.open = false;
       } else {