diff --git a/app/server.py b/app/server.py
index d98a2ec..73c471b 100644
--- a/app/server.py
+++ b/app/server.py
@@ -565,17 +565,29 @@ class Handler(BaseHTTPRequestHandler):
 
     def render_logs(self) -> None:
         logs = self.list_logs()
-        alert_rows = "".join(
-            f"<tr><td>{row['id']}</td><td>{html.escape(row['symbol'])}</td><td>{html.escape(row['timeframe'])}</td><td>{html.escape(row['strategy'])}</td><td><span class='status'>{html.escape(row['status'])}</span></td><td>{html.escape(row['error'] or '')}</td><td>{row['created_at']}</td></tr>"
-            for row in logs["alerts"]
-        )
+        alert_rows = ""
+        for row in logs["alerts"]:
+            try:
+                raw_payload = json.dumps(json.loads(row["payload"]), ensure_ascii=False, indent=2)
+            except Exception:
+                raw_payload = row["payload"] or ""
+            alert_rows += f"""<tr>
+<td>{row['id']}</td>
+<td>{html.escape(row['symbol'])}</td>
+<td>{html.escape(row['timeframe'])}</td>
+<td>{html.escape(row['strategy'])}</td>
+<td><span class='status'>{html.escape(row['status'])}</span></td>
+<td>{html.escape(row['error'] or '')}</td>
+<td>{row['created_at']}</td>
+<td><details class="payload-details"><summary>查看</summary><pre>{html.escape(raw_payload)}</pre></details></td>
+</tr>"""
         delivery_rows = "".join(
             f"<tr><td>{row['id']}</td><td>{row['alert_id']}</td><td>{html.escape(row['target_name'])}</td><td><span class='status'>{html.escape(row['status'])}</span></td><td>{row['attempts']}</td><td>{html.escape(str(row['response_code'] or ''))}</td><td>{html.escape(row['error'] or '')}</td><td>{html.escape(row['next_attempt_at'] or '')}</td></tr>"
             for row in logs["deliveries"]
         )
         body = f"""<header><h1>日志</h1><p>最近 100 条 alert 和 200 条分发任务。</p></header>
 <form method="post" action="/deliveries/retry"><button type="submit">处理到期重试</button></form>
-<section><h2>Alert 日志</h2><table><thead><tr><th>ID</th><th>品种</th><th>周期</th><th>策略</th><th>状态</th><th>错误</th><th>时间</th></tr></thead><tbody>{alert_rows}</tbody></table></section>
+<section><h2>Alert 日志</h2><table><thead><tr><th>ID</th><th>品种</th><th>周期</th><th>策略</th><th>状态</th><th>错误</th><th>时间</th><th>原始 Alert</th></tr></thead><tbody>{alert_rows}</tbody></table></section>
 <section><h2>Delivery 日志</h2><table><thead><tr><th>ID</th><th>Alert</th><th>目标</th><th>状态</th><th>次数</th><th>HTTP</th><th>错误</th><th>下次重试</th></tr></thead><tbody>{delivery_rows}</tbody></table></section>"""
         self.send_html("日志", body)
 
diff --git a/app/static/styles.css b/app/static/styles.css
index 958418e..68ae4f4 100644
--- a/app/static/styles.css
+++ b/app/static/styles.css
@@ -364,6 +364,18 @@ pre {
   color: #f7f1e4;
 }
 
+.payload-details summary {
+  cursor: pointer;
+  color: var(--accent);
+  font-weight: 800;
+}
+
+.payload-details pre {
+  width: min(620px, 70vw);
+  max-height: 360px;
+  margin: 10px 0 0;
+}
+
 .inline {
   display: inline;
 }