diff --git a/src/main/java/cn/yinlihupo/controller/project/TaskController.java b/src/main/java/cn/yinlihupo/controller/project/TaskController.java
index 0f13f27..c7c0836 100644
--- a/src/main/java/cn/yinlihupo/controller/project/TaskController.java
+++ b/src/main/java/cn/yinlihupo/controller/project/TaskController.java
@@ -3,12 +3,16 @@ package cn.yinlihupo.controller.project;
 import cn.dev33.satoken.annotation.SaCheckPermission;
 import cn.yinlihupo.common.core.BaseResponse;
 import cn.yinlihupo.common.util.ResultUtils;
+import cn.yinlihupo.domain.dto.TaskUpdateRequest;
+import cn.yinlihupo.domain.entity.SysUser;
 import cn.yinlihupo.domain.entity.Task;
+import cn.yinlihupo.mapper.SysUserMapper;
 import cn.yinlihupo.mapper.TaskMapper;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
 import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.*;
 
@@ -25,6 +29,7 @@ import java.util.Map;
 public class TaskController {
 
     private final TaskMapper taskMapper;
+    private final SysUserMapper sysUserMapper;
 
     /**
      * 分页查询任务列表
@@ -95,16 +100,31 @@ public class TaskController {
      */
     @SaCheckPermission("project:task:update")
     @PutMapping
-    public BaseResponse<Void> update(@RequestBody Task task) {
-        if (task.getId() == null) {
+    public BaseResponse<Void> update(@RequestBody TaskUpdateRequest request) {
+        if (request.getId() == null) {
             return ResultUtils.error("任务ID不能为空");
         }
 
-        Task exist = taskMapper.selectById(task.getId());
+        Task exist = taskMapper.selectById(request.getId());
         if (exist == null || exist.getDeleted() == 1) {
             return ResultUtils.error("任务不存在");
         }
 
+        // 将DTO转换为实体
+        Task task = new Task();
+        BeanUtils.copyProperties(request, task);
+
+        // 如果传递了assigneeName，根据姓名查询用户ID
+        if (StringUtils.hasText(request.getAssigneeName())) {
+            SysUser user = sysUserMapper.selectByRealName(request.getAssigneeName());
+            if (user != null) {
+                task.setAssigneeId(user.getId());
+                log.debug("任务执行人 '{}' 匹配到用户 ID: {}", request.getAssigneeName(), user.getId());
+            } else {
+                log.warn("任务执行人 '{}' 未在系统中找到匹配的用户", request.getAssigneeName());
+            }
+        }
+
         // 不更新敏感字段
         task.setCreateTime(null);
         task.setDeleted(null);
diff --git a/src/main/java/cn/yinlihupo/domain/dto/TaskUpdateRequest.java b/src/main/java/cn/yinlihupo/domain/dto/TaskUpdateRequest.java
new file mode 100644
index 0000000..e0dd61a
--- /dev/null
+++ b/src/main/java/cn/yinlihupo/domain/dto/TaskUpdateRequest.java
@@ -0,0 +1,109 @@
+package cn.yinlihupo.domain.dto;
+
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.util.List;
+
+/**
+ * 任务更新请求DTO
+ */
+@Data
+public class TaskUpdateRequest {
+
+    /**
+     * 任务ID（必填）
+     */
+    private Long id;
+
+    /**
+     * 所属里程碑ID
+     */
+    private Long milestoneId;
+
+    /**
+     * 任务名称
+     */
+    private String taskName;
+
+    /**
+     * 任务描述
+     */
+    private String description;
+
+    /**
+     * 任务类型
+     */
+    private String taskType;
+
+    /**
+     * 执行人ID（直接传递ID时使用）
+     */
+    private Long assigneeId;
+
+    /**
+     * 执行人姓名（根据姓名自动匹配用户ID）
+     */
+    private String assigneeName;
+
+    /**
+     * 计划开始日期
+     */
+    private LocalDate planStartDate;
+
+    /**
+     * 计划结束日期
+     */
+    private LocalDate planEndDate;
+
+    /**
+     * 实际开始日期
+     */
+    private LocalDate actualStartDate;
+
+    /**
+     * 实际结束日期
+     */
+    private LocalDate actualEndDate;
+
+    /**
+     * 计划工时(小时)
+     */
+    private BigDecimal planHours;
+
+    /**
+     * 实际工时(小时)
+     */
+    private BigDecimal actualHours;
+
+    /**
+     * 进度百分比
+     */
+    private Integer progress;
+
+    /**
+     * 优先级: critical-关键, high-高, medium-中, low-低
+     */
+    private String priority;
+
+    /**
+     * 状态: pending-待开始, in_progress-进行中, completed-已完成, cancelled-已取消
+     */
+    private String status;
+
+    /**
+     * 标签
+     */
+    private List<String> tags;
+
+    /**
+     * 附件列表
+     */
+    private List<Object> attachments;
+
+    /**
+     * 扩展数据
+     */
+    private Object extraData;
+}