diff --git a/backend/routes/projects.js b/backend/routes/projects.js
index ac95bbd..6247851 100644
--- a/backend/routes/projects.js
+++ b/backend/routes/projects.js
@@ -697,15 +697,16 @@ router.post('/:id/phases/init', async (req, res) => {
 router.put('/:id/phases/:phaseId/complete', async (req, res) => {
   try {
     const { id, phaseId } = req.params;
-    const { remark, photos, completed_by } = req.body;
+    const { remark, photos, completed_by, attachments } = req.body;
     const phaseResult = await db.query('SELECT * FROM project_phases WHERE id = $1 AND project_id = $2', [phaseId, id]);
     if (phaseResult.rows.length === 0) {
       return res.status(404).json({ success: false, message: '阶段不存在' });
     }
     const phase = phaseResult.rows[0];
+    const allAttachments = attachments || photos || phase.photos || [];
     await db.query(
       `UPDATE project_phases SET status = 'completed', completed_at = NOW(), completed_by = $1, remark = $2, photos = $3 WHERE id = $4`,
-      [completed_by || null, remark || phase.remark, photos || phase.photos, phaseId]
+      [completed_by || null, remark || phase.remark, JSON.stringify(allAttachments), phaseId]
     );
     const allPhases = await db.query('SELECT * FROM project_phases WHERE project_id = $1 ORDER BY phase_order', [id]);
     const completedCount = allPhases.rows.filter(p => p.status === 'completed').length;
diff --git a/frontend/src/pages/construction/ConstructionProgress.tsx b/frontend/src/pages/construction/ConstructionProgress.tsx
index 9c5e463..d4d2846 100644
--- a/frontend/src/pages/construction/ConstructionProgress.tsx
+++ b/frontend/src/pages/construction/ConstructionProgress.tsx
@@ -1,6 +1,6 @@
 import React, { useState, useEffect } from 'react';
 import { Card, Button, Progress, Tag, Checkbox, Input, Upload, Space, Spin, message, List, Typography, Modal, Image, Divider } from 'antd';
-import { ArrowLeftOutlined, CameraOutlined, CheckCircleOutlined, ClockCircleOutlined, MinusCircleOutlined, UndoOutlined } from '@ant-design/icons';
+import { ArrowLeftOutlined, CameraOutlined, CheckCircleOutlined, ClockCircleOutlined, MinusCircleOutlined, UndoOutlined, UploadOutlined, PaperClipOutlined, EyeOutlined } from '@ant-design/icons';
 import { useNavigate, useParams } from 'react-router-dom';
 import apiClient from '../../utils/request';
 
@@ -15,12 +15,28 @@ interface Phase {
   depends_on: number[];
   status: string;
   started_at: string | null;
-  completed_at: string | null;
+  completed_at: string | string | null;
   remark: string | null;
   photos: string[];
+  attachments: any[];
   sub_items: { name: string; completed: boolean }[];
 }
 
+const isImageUrl = (url: string) => {
+  if (!url) return false;
+  const lower = url.toLowerCase();
+  return lower.match(/\.(jpg|jpeg|png|gif|bmp|webp|svg)(\?|$)/) !== null;
+};
+
+const getFileName = (url: string) => {
+  if (!url) return '附件';
+  const parts = url.split('/');
+  const last = parts[parts.length - 1];
+  const decoded = decodeURIComponent(last);
+  const noTimestamp = decoded.replace(/^\d+_/, '');
+  return noTimestamp;
+};
+
 const ConstructionProgress: React.FC = () => {
   const { id } = useParams<{ id: string }>();
   const [project, setProject] = useState<any>(null);
@@ -28,6 +44,9 @@ const ConstructionProgress: React.FC = () => {
   const [loading, setLoading] = useState(false);
   const [completingPhaseId, setCompletingPhaseId] = useState<number | null>(null);
   const [remark, setRemark] = useState('');
+  const [confirmAttachments, setConfirmAttachments] = useState<any[]>([]);
+  const [previewVisible, setPreviewVisible] = useState(false);
+  const [previewUrl, setPreviewUrl] = useState('');
   const navigate = useNavigate();
 
   useEffect(() => { if (id) { fetchProject(); fetchPhases(); } }, [id]);
@@ -51,14 +70,42 @@ const ConstructionProgress: React.FC = () => {
   const handleCompletePhase = (phaseId: number) => {
     setCompletingPhaseId(phaseId);
     setRemark('');
+    setConfirmAttachments([]);
+  };
+
+  const handleUpload = async (file: File) => {
+    try {
+      const formData = new FormData();
+      formData.append('file', file);
+      const res = await apiClient.post('/upload/single', formData);
+      if (res.data.success) {
+        const uploaded = res.data.data;
+        setConfirmAttachments(prev => [...prev, {
+          uid: String(Date.now()),
+          name: uploaded.name || file.name,
+          url: uploaded.url,
+          isImage: uploaded.isImage,
+          status: 'done',
+        }]);
+      }
+    } catch (e) {
+      message.error('上传失败');
+    }
+    return false;
+  };
+
+  const handleRemoveAttachment = (uid: string) => {
+    setConfirmAttachments(prev => prev.filter(a => a.uid !== uid));
   };
 
   const confirmComplete = async () => {
     if (!completingPhaseId || !id) return;
     try {
+      const attachmentUrls = confirmAttachments.map(a => a.url);
       const res = await apiClient.put(`/projects/${id}/phases/${completingPhaseId}/complete`, {
         remark,
         completed_by: 1,
+        attachments: attachmentUrls,
       });
       if (res.data.success) {
         message.success(`阶段完成！进度: ${res.data.data.progress}%`);
@@ -117,6 +164,50 @@ const ConstructionProgress: React.FC = () => {
     }
   };
 
+  const renderAttachments = (attachments: any[]) => {
+    if (!attachments || attachments.length === 0) return null;
+    const images = attachments.filter(a => isImageUrl(typeof a === 'string' ? a : a.url));
+    const files = attachments.filter(a => !isImageUrl(typeof a === 'string' ? a : a.url));
+
+    return (
+      <div style={{ marginTop: 8, marginLeft: 28 }}>
+        {images.length > 0 && (
+          <div style={{ marginBottom: 4 }}>
+            <Image.PreviewGroup>
+              {images.map((a, i) => {
+                const url = typeof a === 'string' ? a : a.url;
+                return (
+                  <Image
+                    key={i}
+                    src={url}
+                    width={48}
+                    height={48}
+                    style={{ borderRadius: 4, objectFit: 'cover', marginRight: 4, cursor: 'pointer' }}
+                    preview={{ mask: <EyeOutlined /> }}
+                    fallback="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mN88P/BfwAJhAPk2iMa1AAAAABJRU5ErkJggg=="
+                  />
+                );
+              })}
+            </Image.PreviewGroup>
+          </div>
+        )}
+        {files.length > 0 && (
+          <div>
+            {files.map((a, i) => {
+              const url = typeof a === 'string' ? a : a.url;
+              const name = typeof a === 'string' ? getFileName(a) : a.name || getFileName(a.url);
+              return (
+                <div key={i} style={{ fontSize: 12, color: '#1890ff', marginBottom: 2 }}>
+                  <PaperClipOutlined /> <a href={url} target="_blank" rel="noopener">{name}</a>
+                </div>
+              );
+            })}
+          </div>
+        )}
+      </div>
+    );
+  };
+
   const currentPhase = phases.find(p => p.status === 'in_progress');
   const completedPhases = phases.filter(p => p.status === 'completed').reverse();
   const pendingPhases = phases.filter(p => p.status === 'pending');
@@ -213,6 +304,7 @@ const ConstructionProgress: React.FC = () => {
                   </Space>
                 </div>
                 {phase.remark && <Paragraph type="secondary" style={{ margin: '4px 0 0 28px', fontSize: 12 }}>{phase.remark}</Paragraph>}
+                {renderAttachments(phase.attachments || phase.photos)}
               </div>
             ))}
           </Card>
@@ -254,6 +346,39 @@ const ConstructionProgress: React.FC = () => {
       >
         <Paragraph>确认此阶段已完成？系统将自动推进到下一阶段。</Paragraph>
         {remark && <Paragraph type="secondary">备注：{remark}</Paragraph>}
+
+        <Divider style={{ margin: '12px 0' }} />
+
+        <div style={{ marginBottom: 8 }}>
+          <Text strong>上传证明材料（照片/文件）：</Text>
+        </div>
+        <Upload
+          beforeUpload={(file) => { handleUpload(file); return false; }}
+          onRemove={(file) => handleRemoveAttachment(file.uid)}
+          fileList={confirmAttachments.map(a => ({
+            uid: a.uid,
+            name: a.name,
+            status: 'done' as const,
+            url: a.url,
+            thumbUrl: a.isImage ? a.url : undefined,
+          }))}
+          listType="picture"
+          accept="image/*,.pdf,.doc,.docx,.xls,.xlsx"
+          multiple
+        >
+          <Button icon={<UploadOutlined />}>选择文件</Button>
+        </Upload>
+        <div style={{ marginTop: 4 }}>
+          <Text type="secondary" style={{ fontSize: 12 }}>支持照片、PDF、Word、Excel等文件</Text>
+        </div>
+      </Modal>
+
+      <Modal
+        open={previewVisible}
+        footer={null}
+        onCancel={() => setPreviewVisible(false)}
+      >
+        <img src={previewUrl} style={{ width: '100%' }} />
       </Modal>
     </div>
   );
diff --git a/frontend/src/pages/projects/ProjectsPage.tsx b/frontend/src/pages/projects/ProjectsPage.tsx
index be81254..bc23a30 100644
--- a/frontend/src/pages/projects/ProjectsPage.tsx
+++ b/frontend/src/pages/projects/ProjectsPage.tsx
@@ -61,7 +61,7 @@ const ProjectsPage: React.FC = () => {
         setProjects(response.data.data.map((p: Project) => ({
           ...p,
           key: p.id.toString(),
-          progress: Math.floor(Math.random() * 100),
+          progress: p.status === 'completed' ? 100 : (p.phase_progress || 0),
           manager_name: p.manager_name || '未分配'
         })));
       } else {