diff --git a/lib/pipeline/render/impl/template/template_loader.dart b/lib/pipeline/render/impl/template/template_loader.dart
index 86bca7a..644721f 100644
--- a/lib/pipeline/render/impl/template/template_loader.dart
+++ b/lib/pipeline/render/impl/template/template_loader.dart
@@ -94,25 +94,35 @@ class TemplateLoader {
       }
 
       final configContent = packageConfigFile.readAsStringSync();
+      final config = jsonDecode(configContent) as Map<String, dynamic>;
+      final packages = config['packages'] as List<dynamic>;
 
-      // 简单的正则匹配提取 swagger_generator_flutter 的 rootUri
-      // 格式示例: "name": "swagger_generator_flutter", ... "rootUri": "file:///path/to/package"
-      final pattern = RegExp(
-        r'"name"\s*:\s*"swagger_generator_flutter"[^}]*"rootUri"\s*:\s*"([^"]+)"',
-        multiLine: true,
+      final package = packages.firstWhere(
+        (p) => p['name'] == 'swagger_generator_flutter',
+        orElse: () => null,
       );
 
-      final match = pattern.firstMatch(configContent);
-      if (match != null) {
-        var rootUri = match.group(1)!;
+      if (package != null) {
+        final rootUri = package['rootUri'] as String;
+        String packagePath;
 
-        // 移除 file:// 前缀
+        // 处理 file:// 协议
         if (rootUri.startsWith('file://')) {
-          rootUri = rootUri.substring(7);
+          packagePath = Uri.parse(rootUri).toFilePath();
+        } else {
+          // 处理相对路径 (相对于 .dart_tool/)
+          // package_config.json 中的相对路径通常是 ../
+          packagePath = rootUri;
+        }
+
+        // 如果不是绝对路径，需要相对于 .dart_tool/package_config.json 所在目录解析
+        if (!p.isAbsolute(packagePath)) {
+          // package_config.json 在 .dart_tool 目录下
+          packagePath = p.normalize(p.join('.dart_tool', packagePath));
         }
 
         // 添加模板目录路径
-        final templateDir = p.join(rootUri, 'lib', 'templates');
+        final templateDir = p.join(packagePath, 'lib', 'templates');
         if (Directory(templateDir).existsSync()) {
           dirs.add(templateDir);
         }
diff --git a/lib/pipeline/render/impl/template_renderer.dart b/lib/pipeline/render/impl/template_renderer.dart
index 5500229..06a0c57 100644
--- a/lib/pipeline/render/impl/template_renderer.dart
+++ b/lib/pipeline/render/impl/template_renderer.dart
@@ -1,3 +1,4 @@
+import 'dart:convert';
 import 'dart:io';
 
 import 'package:mustache_template/mustache_template.dart';