diff --git a/dev-services.py b/dev-services.py
index 870b68e..aed1840 100644
--- a/dev-services.py
+++ b/dev-services.py
@@ -67,6 +67,14 @@ DEFAULT_PORTS = {
     "spring-boot-gradle": 8080,
 }
 
+# 前端/H5 服务固定端口映射（按项目目录名匹配）
+FIXED_FRONTEND_PORTS = {
+    "web": 5178,
+    "web-admin": 5179,
+    "mini-program": 5180,
+    "life-script": 5181,
+}
+
 # ANSI 颜色
 COLORS = {
     "INFO": "\033[37m",
@@ -328,33 +336,69 @@ def _update_service_port(svc: Service, port: int):
     svc.health_url = re.sub(r":\d+", f":{port}", svc.health_url, count=1)
     updated = []
     skip_next = False
+    has_port_arg = False
     for index, part in enumerate(svc.start_cmd):
         if skip_next:
             skip_next = False
             continue
-        if part == "--port" and index + 1 < len(svc.start_cmd):
-            updated.extend([part, str(port)])
-            skip_next = True
+        if part == "--port":
+            has_port_arg = True
+            if index + 1 < len(svc.start_cmd):
+                updated.extend([part, str(port)])
+                skip_next = True
         elif part.startswith("--port="):
+            has_port_arg = True
             updated.append(f"--port={port}")
         elif f"--server.port={old_port}" in part:
             updated.append(part.replace(f"--server.port={old_port}", f"--server.port={port}"))
         else:
             updated.append(part)
+
+    # 前端框架如果没有 --port 参数，追加 --port
+    if not has_port_arg and svc.project_type in {"vite", "uniapp", "taro", "next"}:
+        updated.extend(["--port", str(port)])
+
     svc.start_cmd = updated
 
 
 def assign_unique_ports(services: list[Service]) -> list[Service]:
-    reserved = {svc.port for svc in services if _service_has_explicit_port(svc)}
-    used = set()
+    # 按目录名匹配固定前端端口
+    dir_name_to_service = {}
+    for svc in services:
+        dir_name = svc.project_dir.name
+        if dir_name in FIXED_FRONTEND_PORTS:
+            dir_name_to_service[dir_name] = svc
+
+    # 先为固定前端服务分配端口
+    for dir_name, svc in dir_name_to_service.items():
+        fixed_port = FIXED_FRONTEND_PORTS[dir_name]
+        if svc.port != fixed_port:
+            log(f"{svc.name} 使用固定前端端口 {fixed_port}", "INFO")
+            _update_service_port(svc, fixed_port)
+
+    # 检查端口冲突
+    used_ports = {}
     for svc in services:
         port = svc.port
-        if port in used or (port in reserved and not _service_has_explicit_port(svc)):
-            while port in used or port in reserved:
+        if port in used_ports:
+            other = used_ports[port]
+            log(f"端口冲突: {svc.name} ({port}) 与 {other.name} ({port}) 冲突", "ERROR")
+            sys.exit(1)
+        used_ports[port] = svc
+
+    # 非固定前端服务按原有逻辑处理冲突
+    for svc in services:
+        dir_name = svc.project_dir.name
+        if dir_name in FIXED_FRONTEND_PORTS:
+            continue
+
+        port = svc.port
+        if port in used_ports and used_ports[port] is not svc:
+            while port in used_ports:
                 port += 1
             log(f"{svc.name} 端口 {svc.port} 与其他服务冲突，自动调整为 {port}", "WARN")
             _update_service_port(svc, port)
-        used.add(svc.port)
+
     return services