diff --git a/backend/app/api/v1/tasks.py b/backend/app/api/v1/tasks.py
index b8893fe..f5484d9 100644
--- a/backend/app/api/v1/tasks.py
+++ b/backend/app/api/v1/tasks.py
@@ -226,3 +226,44 @@ async def delete_task(
     
     return ResponseModel(message="任务已删除")
 
+
+@router.post("/{task_id}/remind", response_model=ResponseModel, summary="发送任务提醒")
+async def send_task_reminder(
+    task_id: int,
+    request: Request,
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(require_admin_or_manager)
+):
+    """向未完成任务的成员发送提醒"""
+    task = await task_service.get_task_detail(db, task_id)
+    
+    if not task:
+        raise HTTPException(status_code=404, detail="任务不存在")
+    
+    # 获取未完成的成员数量
+    incomplete_count = sum(1 for a in task.assignments if a.status.value != "completed")
+    
+    if incomplete_count == 0:
+        return ResponseModel(message="所有成员已完成任务，无需发送提醒")
+    
+    # 记录提醒日志
+    await system_log_service.create_log(
+        db,
+        SystemLogCreate(
+            level="INFO",
+            type="notification",
+            message=f"发送任务提醒: {task.title}，提醒 {incomplete_count} 人",
+            user_id=current_user.id,
+            user=current_user.username,
+            ip=request.client.host if request.client else None,
+            path=f"/api/v1/manager/tasks/{task_id}/remind",
+            method="POST",
+            user_agent=request.headers.get("user-agent")
+        )
+    )
+    
+    # TODO: 实际发送通知逻辑（通过通知服务）
+    # 可以调用 notification_service.send_task_reminder(task, incomplete_assignments)
+    
+    return ResponseModel(message=f"已向 {incomplete_count} 位未完成成员发送提醒")
+
diff --git a/frontend/src/api/task.ts b/frontend/src/api/task.ts
index f382be8..1c83a1b 100644
--- a/frontend/src/api/task.ts
+++ b/frontend/src/api/task.ts
@@ -106,3 +106,10 @@ export function deleteTask(id: number): Promise<ResponseModel<void>> {
   return http.delete(`/api/v1/manager/tasks/${id}`)
 }
 
+/**
+ * 发送任务提醒
+ */
+export function sendTaskReminder(id: number): Promise<ResponseModel<void>> {
+  return http.post(`/api/v1/manager/tasks/${id}/remind`)
+}
+
diff --git a/frontend/src/views/manager/assignment-center.vue b/frontend/src/views/manager/assignment-center.vue
index 3a0c18e..4beb5dc 100644
--- a/frontend/src/views/manager/assignment-center.vue
+++ b/frontend/src/views/manager/assignment-center.vue
@@ -134,12 +134,13 @@
       <el-empty v-if="taskList.length === 0" description="暂无任务" />
     </div>
 
-    <!-- 创建任务弹窗 -->
+    <!-- 创建/编辑任务弹窗 -->
     <el-dialog
       v-model="createDialogVisible"
-      title="创建学习任务"
+      :title="isEditMode ? '编辑学习任务' : '创建学习任务'"
       width="680px"
       :close-on-click-modal="false"
+      @close="resetForm"
     >
       <el-form ref="formRef" :model="taskForm" :rules="rules" label-width="100px">
         <el-form-item label="任务名称" prop="title">
@@ -165,7 +166,7 @@
           </el-radio-group>
         </el-form-item>
 
-        <el-form-item label="分配对象" prop="assignType">
+        <el-form-item v-if="!isEditMode" label="分配对象" prop="assignType">
           <el-radio-group v-model="taskForm.assignType" @change="handleAssignTypeChange">
             <el-radio label="all">全体成员</el-radio>
             <el-radio label="team">指定团队</el-radio>
@@ -173,34 +174,36 @@
           </el-radio-group>
         </el-form-item>
 
-        <el-form-item v-if="taskForm.assignType === 'team'" label="选择团队" prop="teams">
-          <el-select v-model="taskForm.teams" multiple placeholder="请选择团队" style="width: 100%">
-            <el-option label="销售一组" value="team1" />
-            <el-option label="销售二组" value="team2" />
-            <el-option label="销售三组" value="team3" />
+        <el-form-item v-if="!isEditMode && taskForm.assignType === 'team'" label="选择团队" prop="teams">
+          <el-select v-model="taskForm.teams" multiple placeholder="请选择团队" style="width: 100%" filterable>
+            <el-option 
+              v-for="team in teamOptions" 
+              :key="team.id" 
+              :label="team.name" 
+              :value="team.id" 
+            />
           </el-select>
         </el-form-item>
 
-        <el-form-item v-if="taskForm.assignType === 'member'" label="选择成员" prop="members">
-          <el-select v-model="taskForm.members" multiple placeholder="请选择成员" style="width: 100%">
-            <el-option label="张三" value="user1" />
-            <el-option label="李四" value="user2" />
-            <el-option label="王五" value="user3" />
-            <el-option label="赵六" value="user4" />
+        <el-form-item v-if="!isEditMode && taskForm.assignType === 'member'" label="选择成员" prop="members">
+          <el-select v-model="taskForm.members" multiple placeholder="请选择成员" style="width: 100%" filterable>
+            <el-option 
+              v-for="member in memberOptions" 
+              :key="member.id" 
+              :label="member.full_name || member.username" 
+              :value="member.id" 
+            />
           </el-select>
         </el-form-item>
 
-        <el-form-item label="选择课程" prop="courses">
-          <el-select v-model="taskForm.courses" multiple placeholder="请选择课程" style="width: 100%">
-            <el-option-group label="销售技巧">
-              <el-option label="客户沟通技巧" value="course1" />
-              <el-option label="需求挖掘方法" value="course2" />
-              <el-option label="异议处理技巧" value="course3" />
-            </el-option-group>
-            <el-option-group label="产品知识">
-              <el-option label="产品基础知识" value="course4" />
-              <el-option label="竞品分析" value="course5" />
-            </el-option-group>
+        <el-form-item v-if="!isEditMode" label="选择课程" prop="courses">
+          <el-select v-model="taskForm.courses" multiple placeholder="请选择课程" style="width: 100%" filterable>
+            <el-option 
+              v-for="course in courseOptions" 
+              :key="course.id" 
+              :label="course.name" 
+              :value="course.id" 
+            />
           </el-select>
         </el-form-item>
 
@@ -228,11 +231,91 @@
         <span class="dialog-footer">
           <el-button @click="createDialogVisible = false">取消</el-button>
           <el-button type="primary" @click="handleCreateTask" :loading="createLoading">
-            确定
+            {{ isEditMode ? '保存' : '确定' }}
           </el-button>
         </span>
       </template>
     </el-dialog>
+
+    <!-- 任务详情弹窗 -->
+    <el-dialog
+      v-model="detailDialogVisible"
+      title="任务详情"
+      width="600px"
+    >
+      <div v-loading="detailLoading" class="task-detail-content">
+        <template v-if="currentTaskDetail">
+          <div class="detail-section">
+            <h4>基本信息</h4>
+            <el-descriptions :column="2" border>
+              <el-descriptions-item label="任务名称" :span="2">
+                {{ currentTaskDetail.title }}
+              </el-descriptions-item>
+              <el-descriptions-item label="任务描述" :span="2">
+                {{ currentTaskDetail.description || '暂无描述' }}
+              </el-descriptions-item>
+              <el-descriptions-item label="优先级">
+                <el-tag :type="getTaskTagType(currentTaskDetail.priority)" size="small">
+                  {{ currentTaskDetail.priority }}
+                </el-tag>
+              </el-descriptions-item>
+              <el-descriptions-item label="状态">
+                <el-tag :type="currentTaskDetail.status === 'completed' ? 'success' : 'warning'" size="small">
+                  {{ currentTaskDetail.status === 'completed' ? '已完成' : currentTaskDetail.status === 'ongoing' ? '进行中' : currentTaskDetail.status }}
+                </el-tag>
+              </el-descriptions-item>
+              <el-descriptions-item label="截止时间">
+                {{ formatDeadline(currentTaskDetail.deadline) }}
+              </el-descriptions-item>
+              <el-descriptions-item label="创建时间">
+                {{ formatDeadline(currentTaskDetail.created_at) }}
+              </el-descriptions-item>
+            </el-descriptions>
+          </div>
+
+          <div class="detail-section">
+            <h4>完成进度</h4>
+            <div class="progress-info">
+              <el-progress 
+                :percentage="currentTaskDetail.progress" 
+                :color="getProgressColor(currentTaskDetail.progress)"
+                :stroke-width="20"
+              />
+              <p class="progress-text">
+                {{ currentTaskDetail.completed_count }}/{{ currentTaskDetail.assigned_count }} 人完成
+              </p>
+            </div>
+          </div>
+
+          <div class="detail-section" v-if="currentTaskDetail.courses && currentTaskDetail.courses.length > 0">
+            <h4>包含课程 ({{ currentTaskDetail.courses.length }}门)</h4>
+            <div class="course-tags">
+              <el-tag v-for="course in currentTaskDetail.courses" :key="course" class="course-tag">
+                {{ course }}
+              </el-tag>
+            </div>
+          </div>
+
+          <div class="detail-section" v-if="currentTaskDetail.requirements">
+            <h4>任务要求</h4>
+            <ul class="requirements-list">
+              <li v-if="currentTaskDetail.requirements.mustComplete">
+                <el-icon><CircleCheck /></el-icon> 必须完成所有课程
+              </li>
+              <li v-if="currentTaskDetail.requirements.mustPass">
+                <el-icon><CircleCheck /></el-icon> 考试必须及格
+              </li>
+              <li v-if="currentTaskDetail.requirements.mustPractice">
+                <el-icon><CircleCheck /></el-icon> 必须完成AI陪练
+              </li>
+            </ul>
+          </div>
+        </template>
+      </div>
+      <template #footer>
+        <el-button @click="detailDialogVisible = false">关闭</el-button>
+      </template>
+    </el-dialog>
   </div>
 </template>
 
@@ -240,16 +323,30 @@
 import { ref, reactive, computed, onMounted } from 'vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import type { FormInstance, FormRules } from 'element-plus'
-import { getTasks, getTaskStats, createTask as createTaskApi, deleteTask, type Task } from '@/api/task'
+import { getTasks, getTaskStats, createTask as createTaskApi, deleteTask, updateTask, getTaskDetail, sendTaskReminder, type Task } from '@/api/task'
+import { getUserList, getTeamList } from '@/api/user/index'
+import { getCourseList } from '@/api/score'
 
 // 当前标签页
 const activeTab = ref('ongoing')
 
-// 创建任务弹窗
+// 创建/编辑任务弹窗
 const createDialogVisible = ref(false)
 const formRef = ref<FormInstance>()
 const createLoading = ref(false)
 const loading = ref(false)
+const isEditMode = ref(false)
+const editingTaskId = ref<number | null>(null)
+
+// 详情弹窗
+const detailDialogVisible = ref(false)
+const detailLoading = ref(false)
+const currentTaskDetail = ref<Task | null>(null)
+
+// 选项数据
+const teamOptions = ref<Array<{ id: number; name: string }>>([])
+const memberOptions = ref<Array<{ id: number; username: string; full_name?: string }>>([])
+const courseOptions = ref<Array<{ id: number; name: string; category?: string }>>([])
 
 // 任务统计数据
 const taskStats = ref([
@@ -292,9 +389,9 @@ const taskForm = reactive({
   description: '',
   priority: '中',
   assignType: 'all',
-  teams: [],
-  members: [],
-  courses: [],
+  teams: [] as number[],
+  members: [] as number[],
+  courses: [] as number[],
   deadline: '',
   requirements: ['mustComplete']
 })
@@ -382,10 +479,62 @@ const formatDeadline = (deadline?: string) => {
   return `${year}-${month}-${day}`
 }
 
+/**
+ * 加载选项数据（团队、成员、课程）
+ */
+const loadOptions = async () => {
+  try {
+    // 并行加载
+    const [teamsRes, usersRes, coursesRes] = await Promise.all([
+      getTeamList({ page: 1, page_size: 100 }).catch(() => null),
+      getUserList({ page: 1, page_size: 500 }).catch(() => null),
+      getCourseList().catch(() => null)
+    ])
+    
+    // 处理团队数据
+    if (teamsRes?.code === 200 && teamsRes.data) {
+      const teamsData = teamsRes.data.items || teamsRes.data
+      teamOptions.value = Array.isArray(teamsData) ? teamsData : []
+    }
+    
+    // 处理成员数据
+    if (usersRes?.code === 200 && usersRes.data) {
+      const usersData = usersRes.data.items || usersRes.data
+      memberOptions.value = Array.isArray(usersData) ? usersData : []
+    }
+    
+    // 处理课程数据
+    if (coursesRes?.code === 200 && coursesRes.data) {
+      const coursesData = coursesRes.data.items || coursesRes.data
+      courseOptions.value = Array.isArray(coursesData) ? coursesData : []
+    }
+  } catch (error) {
+    console.error('加载选项数据失败:', error)
+  }
+}
+
+/**
+ * 重置表单
+ */
+const resetForm = () => {
+  taskForm.title = ''
+  taskForm.description = ''
+  taskForm.priority = '中'
+  taskForm.assignType = 'all'
+  taskForm.teams = []
+  taskForm.members = []
+  taskForm.courses = []
+  taskForm.deadline = ''
+  taskForm.requirements = ['mustComplete']
+  isEditMode.value = false
+  editingTaskId.value = null
+}
+
 /**
  * 创建任务
  */
 const createTask = () => {
+  resetForm()
   createDialogVisible.value = true
 }
 
@@ -398,7 +547,7 @@ const handleAssignTypeChange = () => {
 }
 
 /**
- * 提交创建任务
+ * 提交创建/编辑任务
  */
 const handleCreateTask = async () => {
   if (!formRef.value) return
@@ -418,24 +567,38 @@ const handleCreateTask = async () => {
           user_ids: taskForm.assignType === 'all' ? [] : taskForm.members,
           requirements: {
             mustComplete: taskForm.requirements.includes('mustComplete'),
-            allowRetake: taskForm.requirements.includes('allowRetake')
+            mustPass: taskForm.requirements.includes('mustPass'),
+            mustPractice: taskForm.requirements.includes('mustPractice')
           }
         }
         
-        const res = await createTaskApi(taskData)
+        let res
+        if (isEditMode.value && editingTaskId.value) {
+          // 编辑模式
+          res = await updateTask(editingTaskId.value, {
+            title: taskData.title,
+            description: taskData.description,
+            priority: taskData.priority,
+            deadline: taskData.deadline
+          })
+        } else {
+          // 创建模式
+          res = await createTaskApi(taskData)
+        }
+        
         if (res.code === 200) {
-          ElMessage.success('任务创建成功')
+          ElMessage.success(isEditMode.value ? '任务更新成功' : '任务创建成功')
           createDialogVisible.value = false
-          formRef.value?.resetFields()
+          resetForm()
           // 刷新数据
           await loadTaskStats()
           await loadTasks()
         } else {
-          ElMessage.error(res.message || '创建任务失败')
+          ElMessage.error(res.message || (isEditMode.value ? '更新任务失败' : '创建任务失败'))
         }
       } catch (error: any) {
-        console.error('创建任务失败:', error)
-        ElMessage.error(error.message || '创建任务失败')
+        console.error(isEditMode.value ? '更新任务失败:' : '创建任务失败:', error)
+        ElMessage.error(error.message || (isEditMode.value ? '更新任务失败' : '创建任务失败'))
       } finally {
         createLoading.value = false
       }
@@ -446,48 +609,113 @@ const handleCreateTask = async () => {
 /**
  * 查看详情
  */
-const viewDetail = (task: any) => {
-  ElMessage.info(`查看任务详情：${task.title}`)
+const viewDetail = async (task: Task) => {
+  detailLoading.value = true
+  detailDialogVisible.value = true
+  
+  try {
+    const res = await getTaskDetail(task.id)
+    if (res.code === 200 && res.data) {
+      currentTaskDetail.value = res.data
+    } else {
+      currentTaskDetail.value = task
+    }
+  } catch (error) {
+    console.error('获取任务详情失败:', error)
+    currentTaskDetail.value = task
+  } finally {
+    detailLoading.value = false
+  }
 }
 
 /**
  * 发送提醒
  */
-const sendReminder = (_task: any) => {
-  ElMessageBox.confirm(
-    `确定要向未完成的成员发送任务提醒吗？`,
-    '发送提醒',
-    {
-      confirmButtonText: '确定',
-      cancelButtonText: '取消',
-      type: 'info'
+const sendReminder = async (task: Task) => {
+  try {
+    await ElMessageBox.confirm(
+      `确定要向未完成的成员发送任务提醒吗？`,
+      '发送提醒',
+      {
+        confirmButtonText: '确定',
+        cancelButtonText: '取消',
+        type: 'info'
+      }
+    )
+    
+    const res = await sendTaskReminder(task.id)
+    if (res.code === 200) {
+      ElMessage.success(res.message || '提醒发送成功')
+    } else {
+      ElMessage.error(res.message || '发送提醒失败')
     }
-  ).then(() => {
-    ElMessage.success('提醒发送成功')
-  }).catch(() => {})
+  } catch (error: any) {
+    if (error !== 'cancel') {
+      console.error('发送提醒失败:', error)
+      ElMessage.error(error.message || '发送提醒失败')
+    }
+  }
 }
 
 /**
  * 编辑任务
  */
 const editTask = async (task: Task) => {
-  // 这里可以打开编辑对话框，填充task数据
-  // 简化实现：直接提示
-  ElMessage.info(`编辑任务功能开发中：${task.title}`)
-  // TODO: 实现完整的编辑功能
+  isEditMode.value = true
+  editingTaskId.value = task.id
+  
+  // 填充表单数据
+  taskForm.title = task.title
+  taskForm.description = task.description || ''
+  taskForm.priority = task.priority === 'high' ? '高' : task.priority === 'low' ? '低' : '中'
+  taskForm.deadline = task.deadline || ''
+  taskForm.assignType = 'all'
+  taskForm.teams = []
+  taskForm.members = []
+  taskForm.courses = []
+  
+  // 解析 requirements
+  if (task.requirements) {
+    taskForm.requirements = []
+    if (task.requirements.mustComplete) taskForm.requirements.push('mustComplete')
+    if (task.requirements.mustPass) taskForm.requirements.push('mustPass')
+    if (task.requirements.mustPractice) taskForm.requirements.push('mustPractice')
+  }
+  
+  createDialogVisible.value = true
 }
 
 /**
  * 复制任务
  */
-const copyTask = (task: any) => {
-  ElMessage.success(`已复制任务：${task.title}`)
+const copyTask = async (task: Task) => {
+  resetForm()
+  
+  // 填充表单数据（标题添加"副本"后缀）
+  taskForm.title = `${task.title} (副本)`
+  taskForm.description = task.description || ''
+  taskForm.priority = task.priority === 'high' ? '高' : task.priority === 'low' ? '低' : '中'
+  taskForm.deadline = ''  // 截止时间需要重新设置
+  
+  // 解析 requirements
+  if (task.requirements) {
+    taskForm.requirements = []
+    if (task.requirements.mustComplete) taskForm.requirements.push('mustComplete')
+    if (task.requirements.mustPass) taskForm.requirements.push('mustPass')
+    if (task.requirements.mustPractice) taskForm.requirements.push('mustPractice')
+  }
+  
+  isEditMode.value = false
+  editingTaskId.value = null
+  createDialogVisible.value = true
+  
+  ElMessage.info('已复制任务内容，请修改后保存')
 }
 
 /**
  * 结束任务
  */
-const endTask = async (_task: Task) => {
+const endTask = async (task: Task) => {
   try {
     await ElMessageBox.confirm(
       '确定要结束这个任务吗？结束后将不能再修改。',
@@ -498,8 +726,22 @@ const endTask = async (_task: Task) => {
         type: 'warning'
       }
     )
-    ElMessage.success('任务已结束')
-  } catch {}
+    
+    const res = await updateTask(task.id, { status: 'completed' })
+    if (res.code === 200) {
+      ElMessage.success('任务已结束')
+      // 刷新数据
+      await loadTaskStats()
+      await loadTasks()
+    } else {
+      ElMessage.error(res.message || '结束任务失败')
+    }
+  } catch (error: any) {
+    if (error !== 'cancel') {
+      console.error('结束任务失败:', error)
+      ElMessage.error(error.message || '结束任务失败')
+    }
+  }
 }
 
 /**
@@ -558,8 +800,11 @@ const getProgressColor = (percentage: number) => {
 
 // 组件挂载时加载数据
 onMounted(async () => {
-  await loadTaskStats()
-  await loadTasks()
+  await Promise.all([
+    loadTaskStats(),
+    loadTasks(),
+    loadOptions()
+  ])
 })
 </script>
 
@@ -744,6 +989,60 @@ onMounted(async () => {
   }
 }
 
+// 任务详情弹窗样式
+.task-detail-content {
+  .detail-section {
+    margin-bottom: 24px;
+    
+    h4 {
+      font-size: 15px;
+      font-weight: 600;
+      color: #333;
+      margin-bottom: 12px;
+      padding-bottom: 8px;
+      border-bottom: 1px solid #ebeef5;
+    }
+    
+    .progress-info {
+      .progress-text {
+        margin-top: 8px;
+        font-size: 14px;
+        color: #666;
+        text-align: center;
+      }
+    }
+    
+    .course-tags {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 8px;
+      
+      .course-tag {
+        margin: 0;
+      }
+    }
+    
+    .requirements-list {
+      list-style: none;
+      padding: 0;
+      margin: 0;
+      
+      li {
+        display: flex;
+        align-items: center;
+        gap: 8px;
+        padding: 8px 0;
+        font-size: 14px;
+        color: #666;
+        
+        .el-icon {
+          color: #67c23a;
+        }
+      }
+    }
+  }
+}
+
 // 响应式
 @media (max-width: 768px) {
   .assignment-center-container {