diff --git a/backend/src/main/java/com/designhub/mapper/TaskItemMapper.java b/backend/src/main/java/com/designhub/mapper/TaskItemMapper.java
index d9de69f..4cd78af 100644
--- a/backend/src/main/java/com/designhub/mapper/TaskItemMapper.java
+++ b/backend/src/main/java/com/designhub/mapper/TaskItemMapper.java
@@ -49,6 +49,8 @@ public interface TaskItemMapper extends BaseMapper<TaskItem> {
             "<if test='taskTypeId != null'> AND ti.task_type_id = #{taskTypeId}</if> " +
             "<if test='keyword != null and keyword != \"\"'> " +
             "  AND (t.title LIKE CONCAT('%', #{keyword}, '%') " +
+            "    OR t.task_no LIKE CONCAT('%', #{keyword}, '%') " +
+            "    OR ti.item_no LIKE CONCAT('%', #{keyword}, '%') " +
             "    OR t.spu_info LIKE CONCAT('%', #{keyword}, '%') " +
             "    OR u.real_name LIKE CONCAT('%', #{keyword}, '%'))" +
             "</if> " +
diff --git a/backend/src/main/java/com/designhub/mapper/TaskMapper.java b/backend/src/main/java/com/designhub/mapper/TaskMapper.java
index 60cc784..f1ce04f 100644
--- a/backend/src/main/java/com/designhub/mapper/TaskMapper.java
+++ b/backend/src/main/java/com/designhub/mapper/TaskMapper.java
@@ -47,6 +47,7 @@ public interface TaskMapper extends BaseMapper<Task> {
             "<if test='maxScore != null'> AND t.score &lt;= #{maxScore}</if>" +
             "<if test='keyword != null and keyword != \"\"'> " +
             "  AND (t.title LIKE CONCAT('%', #{keyword}, '%') " +
+            "    OR t.task_no LIKE CONCAT('%', #{keyword}, '%') " +
             "    OR t.spu_info LIKE CONCAT('%', #{keyword}, '%') " +
             "    OR t.remark LIKE CONCAT('%', #{keyword}, '%') " +
             "    OR u.real_name LIKE CONCAT('%', #{keyword}, '%'))" +
@@ -111,6 +112,7 @@ public interface TaskMapper extends BaseMapper<Task> {
             "<if test='maxScore != null'> AND t.score &lt;= #{maxScore}</if>" +
             "<if test='keyword != null and keyword != \"\"'> " +
             "  AND (t.title LIKE CONCAT('%', #{keyword}, '%') " +
+            "    OR t.task_no LIKE CONCAT('%', #{keyword}, '%') " +
             "    OR t.spu_info LIKE CONCAT('%', #{keyword}, '%') " +
             "    OR t.remark LIKE CONCAT('%', #{keyword}, '%') " +
             "    OR u.real_name LIKE CONCAT('%', #{keyword}, '%'))" +
diff --git a/frontend/src/views/TaskHall.vue b/frontend/src/views/TaskHall.vue
index 4871a74..b946504 100644
--- a/frontend/src/views/TaskHall.vue
+++ b/frontend/src/views/TaskHall.vue
@@ -63,7 +63,7 @@
               <div class="search-row">
                 <a-input-search
                   v-model:value="filters.keyword"
-                  placeholder="搜索任务标题、SPU信息、发布人..."
+                  placeholder="搜索任务编号、标题、SPU信息、发布人..."
                   class="search-input"
                   @search="handleFilterChange"
                   @pressEnter="handleFilterChange"
@@ -413,7 +413,7 @@
               <div class="search-row">
                 <a-input-search
                   v-model:value="reviewFilters.keyword"
-                  placeholder="搜索任务标题、SPU信息、发布人..."
+                  placeholder="搜索任务编号、标题、SPU信息、发布人..."
                   class="search-input"
                   @search="loadReviewTasks"
                   @pressEnter="loadReviewTasks"
@@ -763,7 +763,7 @@
               <div class="search-row">
                 <a-input-search
                   v-model:value="inProgressFilters.keyword"
-                  placeholder="搜索任务标题、SPU信息、发布人..."
+                  placeholder="搜索任务编号、标题、SPU信息、发布人..."
                   class="search-input"
                   @search="loadInProgressTasks"
                   @pressEnter="loadInProgressTasks"
@@ -1096,6 +1096,17 @@
 
                 <!-- 时间信息 -->
                 <div class="task-footer">
+                  <div class="footer-item task-no-item">
+                    <Icon name="hash" size="sm" color="#31f08b" />
+                    <span style="color: #ffffff;">编号: {{ task.isSubTask ? task.itemNo : task.taskNo }}</span>
+                    <Icon 
+                      name="copy" 
+                      size="xs" 
+                      class="copy-icon" 
+                      @click.stop="handleCopyTaskNo(task.isSubTask ? task.itemNo : task.taskNo)"
+                      title="复制任务编号"
+                    />
+                  </div>
                   <div class="footer-item">
                     <Icon name="calendar" size="sm" color="#31f08b" />
                     <span style="color: #ffffff;">发布: {{ formatTime(task.createTime) }}</span>
@@ -1157,7 +1168,7 @@
               <div class="search-row">
                 <a-input-search
                   v-model:value="completedFilters.keyword"
-                  placeholder="搜索任务标题、SPU信息、发布人..."
+                  placeholder="搜索任务编号、标题、SPU信息、发布人..."
                   class="search-input"
                   @search="loadCompletedTasks"
                   @pressEnter="loadCompletedTasks"
@@ -1441,6 +1452,17 @@
 
                 <!-- 时间信息 -->
                 <div class="task-footer">
+                  <div class="footer-item task-no-item">
+                    <Icon name="hash" size="sm" color="#31f08b" />
+                    <span style="color: #ffffff;">编号: {{ task.isSubTask ? task.itemNo : task.taskNo }}</span>
+                    <Icon 
+                      name="copy" 
+                      size="xs" 
+                      class="copy-icon" 
+                      @click.stop="handleCopyTaskNo(task.isSubTask ? task.itemNo : task.taskNo)"
+                      title="复制任务编号"
+                    />
+                  </div>
                   <div class="footer-item">
                     <Icon name="calendar" size="sm" color="#31f08b" />
                     <span style="color: #ffffff;">发布: {{ formatDate(task.createTime) }}</span>
@@ -1507,7 +1529,7 @@
               <div class="search-row">
                 <a-input-search
                   v-model:value="publishedFilters.keyword"
-                  placeholder="搜索任务标题、SPU信息、发布人..."
+                  placeholder="搜索任务编号、标题、SPU信息、发布人..."
                   class="search-input"
                   @search="loadPublishedTasks"
                   @pressEnter="loadPublishedTasks"
@@ -1860,6 +1882,17 @@
 
                 <!-- 时间信息 -->
                 <div class="task-footer">
+                  <div class="footer-item task-no-item">
+                    <Icon name="hash" size="sm" color="#31f08b" />
+                    <span style="color: #ffffff;">编号: {{ task.taskNo }}</span>
+                    <Icon 
+                      name="copy" 
+                      size="xs" 
+                      class="copy-icon" 
+                      @click.stop="handleCopyTaskNo(task.taskNo)"
+                      title="复制任务编号"
+                    />
+                  </div>
                   <div class="footer-item">
                     <Icon name="calendar" size="sm" color="#31f08b" />
                     <span style="color: #ffffff;">发布: {{ formatTime(task.createTime) }}</span>