diff --git a/frontend/app.html b/frontend/app.html
index b110986..c831484 100644
--- a/frontend/app.html
+++ b/frontend/app.html
@@ -841,6 +841,14 @@
         <div v-if="shareResult" class="alert alert-success" style="margin-top: 15px;">
           <strong>分享链接：</strong><br>
           <a :href="shareResult.share_url" target="_blank">{{ shareResult.share_url }}</a>
+          <div v-if="shareResult.expires_at" style="margin-top: 10px; padding-top: 10px; border-top: 1px solid #c3e6cb;">
+            <strong>到期时间：</strong>
+            <span :style="{color: isExpiringSoon(shareResult.expires_at) ? '#ffc107' : '#28a745'}"><i class="fas fa-clock"></i> {{ formatExpireTime(shareResult.expires_at) }}</span>
+          </div>
+          <div v-else style="margin-top: 10px; padding-top: 10px; border-top: 1px solid #c3e6cb;">
+            <strong>有效期：</strong>
+            <span style="color: #28a745;"><i class="fas fa-infinity"></i> 永久有效</span>
+          </div>
         </div>
         <div style="display: flex; gap: 10px; margin-top: 20px;">
           <button class="btn btn-primary" @click="createShareAll()" style="flex: 1;">
@@ -878,6 +886,14 @@
         <div v-if="shareResult" class="alert alert-success" style="margin-top: 15px;">
           <strong>分享链接：</strong><br>
           <a :href="shareResult.share_url" target="_blank">{{ shareResult.share_url }}</a>
+          <div v-if="shareResult.expires_at" style="margin-top: 10px; padding-top: 10px; border-top: 1px solid #c3e6cb;">
+            <strong>到期时间：</strong>
+            <span :style="{color: isExpiringSoon(shareResult.expires_at) ? '#ffc107' : '#28a745'}"><i class="fas fa-clock"></i> {{ formatExpireTime(shareResult.expires_at) }}</span>
+          </div>
+          <div v-else style="margin-top: 10px; padding-top: 10px; border-top: 1px solid #c3e6cb;">
+            <strong>有效期：</strong>
+            <span style="color: #28a745;"><i class="fas fa-infinity"></i> 永久有效</span>
+          </div>
         </div>
         <div style="display: flex; gap: 10px; margin-top: 20px;">
           <button class="btn btn-primary" @click="createShareFile()" style="flex: 1;">
@@ -1146,6 +1162,7 @@
               <th style="padding: 10px; text-align: left;">分享链接</th>
               <th style="padding: 10px; text-align: center;">访问次数</th>
               <th style="padding: 10px; text-align: center;">下载次数</th>
+              <th style="padding: 10px; text-align: center;">到期时间</th>
               <th style="padding: 10px; text-align: center;">操作</th>
             </tr>
           </thead>
@@ -1157,6 +1174,10 @@
               </td>
               <td style="padding: 10px; text-align: center;">{{ share.view_count }}</td>
               <td style="padding: 10px; text-align: center;">{{ share.download_count }}</td>
+              <td style="padding: 10px; text-align: center;">
+                <span v-if="!share.expires_at" style="color: #28a745;"><i class="fas fa-infinity"></i> 永久有效</span>
+                <span v-else :style="{color: isExpiringSoon(share.expires_at) ? '#ffc107' : isExpired(share.expires_at) ? '#dc3545' : '#667eea'}" :title="share.expires_at"><i class="fas fa-clock"></i> {{ formatExpireTime(share.expires_at) }}</span>
+              </td>
               <td style="padding: 10px; text-align: center;">
                 <button class="btn" style="background: #dc3545; color: white;" @click="deleteShare(share.id)">
                   <i class="fas fa-trash"></i> 删除
diff --git a/frontend/app.js b/frontend/app.js
index a0fbcce..a19f3ad 100644
--- a/frontend/app.js
+++ b/frontend/app.js
@@ -1307,6 +1307,55 @@ handleDragLeave(e) {
       }
     },
 
+    // 格式化到期时间显示
+    formatExpireTime(expiresAt) {
+      if (!expiresAt) return '永久有效';
+
+      const expireDate = new Date(expiresAt);
+      const now = new Date();
+      const diffMs = expireDate - now;
+      const diffDays = Math.ceil(diffMs / (1000 * 60 * 60 * 24));
+
+      // 格式化日期
+      const dateStr = expireDate.toLocaleString('zh-CN', {
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+        hour: '2-digit',
+        minute: '2-digit'
+      });
+
+      if (diffDays < 0) {
+        return `已过期 (${dateStr})`;
+      } else if (diffDays === 0) {
+        return `今天过期 (${dateStr})`;
+      } else if (diffDays === 1) {
+        return `明天过期 (${dateStr})`;
+      } else if (diffDays <= 7) {
+        return `${diffDays}天后过期 (${dateStr})`;
+      } else {
+        return dateStr;
+      }
+    },
+
+    // 判断是否即将过期（3天内）
+    isExpiringSoon(expiresAt) {
+      if (!expiresAt) return false;
+      const expireDate = new Date(expiresAt);
+      const now = new Date();
+      const diffMs = expireDate - now;
+      const diffDays = diffMs / (1000 * 60 * 60 * 24);
+      return diffDays > 0 && diffDays <= 3;
+    },
+
+    // 判断是否已过期
+    isExpired(expiresAt) {
+      if (!expiresAt) return false;
+      const expireDate = new Date(expiresAt);
+      const now = new Date();
+      return expireDate <= now;
+    },
+
     copyShareLink(url) {
       // 复制分享链接到剪贴板
       if (navigator.clipboard && navigator.clipboard.writeText) {