diff --git a/routes_discovery.py b/routes_discovery.py
index 95e7eae..a31c055 100644
--- a/routes_discovery.py
+++ b/routes_discovery.py
@@ -71,13 +71,10 @@ def _get_listening_ports():
             port = int(port_match.group(1))
             
             pid_match = re.search(r'pid=(\d+)', line)
-            if not pid_match:
-                continue
-            pid = int(pid_match.group(1))
+            pid = int(pid_match.group(1)) if pid_match else None
             
-            # 提取进程名
             proc_match = re.search(r'users:\(\(\"([^\"]+)\"', line)
-            proc_name = proc_match.group(1) if proc_match else 'unknown'
+            proc_name = proc_match.group(1) if proc_match else '未知进程'
             
             services.append({
                 'port': port,
@@ -219,10 +216,16 @@ def register_discovery_routes(app):
                 continue
             seen_ports.add(port)
             
-            cmdline = _get_process_cmdline(pid)
-            cwd = _get_process_cwd(pid)
-            name = _guess_service_name(pid, svc['process'], cmdline)
-            svc_type = _guess_service_type(cmdline)
+            if pid:
+                cmdline = _get_process_cmdline(pid)
+                cwd = _get_process_cwd(pid)
+                name = _guess_service_name(pid, svc['process'], cmdline)
+                svc_type = _guess_service_type(cmdline)
+            else:
+                cmdline = ''
+                cwd = ''
+                name = svc['process']
+                svc_type = 'unknown'
             
             undiscovered.append({
                 'port': port,
diff --git a/templates_full.txt b/templates_full.txt
index 3f780eb..675dd04 100644
--- a/templates_full.txt
+++ b/templates_full.txt
@@ -2905,7 +2905,7 @@
                             <div class="flex items-center gap-3 flex-1 min-w-0">
                                 <span class="text-xs text-cyan-400 font-mono">:${s.port}</span>
                                 <span class="text-gray-300 text-sm truncate">${s.suggested_name}</span>
-                                <span class="text-gray-500 text-xs">PID ${s.pid}</span>
+                                <span class="text-gray-500 text-xs">PID ${s.pid != null ? s.pid : '受权限限制'}</span>
                                 <span class="text-gray-500 text-xs truncate hidden md:inline">${(s.cmdline || '').substring(0, 60)}</span>
                             </div>
                             <button onclick="quickAddService(${s.port}, '${s.suggested_name.replace(/'/g, "\\'")}', '${s.suggested_type}', '${(s.cwd || '').replace(/'/g, "\\'")}')" class="btn bg-green-600/50 hover:bg-green-600 px-2 py-1 rounded text-xs shrink-0 ml-2">