diff --git a/frontend/src/pages/ProjectDetail.tsx b/frontend/src/pages/ProjectDetail.tsx
index 483373c..ab09ab5 100644
--- a/frontend/src/pages/ProjectDetail.tsx
+++ b/frontend/src/pages/ProjectDetail.tsx
@@ -12,15 +12,20 @@ import {
   Tag,
   Empty,
   List,
+  Tabs,
 } from 'antd';
 import {
   ArrowLeftOutlined,
   ReloadOutlined,
+  ApartmentOutlined,
+  ProfileOutlined,
 } from '@ant-design/icons';
-import { useNavigate, useParams } from 'react-router-dom';
+import { useNavigate, useParams, useSearchParams } from 'react-router-dom';
 import { projectApi, taskApi, artifactApi } from '@/api';
 import type { Project, ProjectStats, Task, Artifact } from '@/types';
 import { ProjectStatusTag, TaskStatusTag } from '@/components/constants';
+import DagCanvas from '@/pages/DagCanvas';
+import TaskDetailModal from '@/components/TaskDetailModal';
 import dayjs from 'dayjs';
 
 const { Title, Text } = Typography;
@@ -28,11 +33,20 @@ const { Title, Text } = Typography;
 export default function ProjectDetail() {
   const { id } = useParams<{ id: string }>();
   const navigate = useNavigate();
+  const [searchParams, setSearchParams] = useSearchParams();
+  const activeTab = searchParams.get('tab') || 'overview';
   const [loading, setLoading] = useState(true);
   const [project, setProject] = useState<Project | null>(null);
   const [stats, setStats] = useState<ProjectStats | null>(null);
   const [tasks, setTasks] = useState<Task[]>([]);
   const [artifacts, setArtifacts] = useState<Artifact[]>([]);
+  const [detailTaskId, setDetailTaskId] = useState<number | null>(null);
+  const [detailOpen, setDetailOpen] = useState(false);
+
+  const openTaskDetail = (taskId: number) => {
+    setDetailTaskId(taskId);
+    setDetailOpen(true);
+  };
 
   useEffect(() => {
     if (!id) return;
@@ -75,36 +89,8 @@ export default function ProjectDetail() {
       ].filter((item) => item.count > 0)
     : [];
 
-  return (
-    <div>
-      <div
-        style={{
-          display: 'flex',
-          justifyContent: 'space-between',
-          alignItems: 'center',
-          marginBottom: 16,
-        }}
-      >
-        <Space>
-          <Button
-            icon={<ArrowLeftOutlined />}
-            onClick={() => navigate('/projects')}
-          >
-            返回
-          </Button>
-          <Title level={4} style={{ margin: 0 }}>
-            {project.name}
-          </Title>
-          <ProjectStatusTag status={project.status} />
-        </Space>
-        <Button
-          icon={<ReloadOutlined />}
-          onClick={() => window.location.reload()}
-        >
-          刷新
-        </Button>
-      </div>
-
+  const overviewTab = (
+    <>
       <Card style={{ marginBottom: 16 }}>
         <Descriptions column={2} bordered size="small">
           <Descriptions.Item label="项目名称">{project.name}</Descriptions.Item>
@@ -198,7 +184,7 @@ export default function ProjectDetail() {
                   >
                     <List.Item.Meta
                       title={
-                        <a onClick={() => navigate('/tasks')}>{task.title}</a>
+                        <a onClick={() => openTaskDetail(task.id)}>{task.title}</a>
                       }
                       description={dayjs(task.created_at).format('MM-DD HH:mm')}
                     />
@@ -231,6 +217,73 @@ export default function ProjectDetail() {
           </Card>
         </Col>
       </Row>
+    </>
+  );
+
+  return (
+    <div>
+      <div
+        style={{
+          display: 'flex',
+          justifyContent: 'space-between',
+          alignItems: 'center',
+          marginBottom: 16,
+        }}
+      >
+        <Space>
+          <Button
+            icon={<ArrowLeftOutlined />}
+            onClick={() => navigate('/projects')}
+          >
+            返回
+          </Button>
+          <Title level={4} style={{ margin: 0 }}>
+            {project.name}
+          </Title>
+          <ProjectStatusTag status={project.status} />
+        </Space>
+        <Button
+          icon={<ReloadOutlined />}
+          onClick={() => window.location.reload()}
+        >
+          刷新
+        </Button>
+      </div>
+
+      <Tabs
+        activeKey={activeTab}
+        onChange={(key) => setSearchParams({ tab: key })}
+        items={[
+          {
+            key: 'overview',
+            label: (
+              <span>
+                <ProfileOutlined /> 概览
+              </span>
+            ),
+            children: overviewTab,
+          },
+          {
+            key: 'dag',
+            label: (
+              <span>
+                <ApartmentOutlined /> DAG 编排
+              </span>
+            ),
+            children: (
+              <Card size="small" title="DAG 编排画布">
+                <DagCanvas projectId={project.id} />
+              </Card>
+            ),
+          },
+        ]}
+      />
+
+      <TaskDetailModal
+        taskId={detailTaskId}
+        open={detailOpen}
+        onClose={() => setDetailOpen(false)}
+      />
     </div>
   );
 }