diff --git a/app/Http/Controllers/Api/TopicsController.php b/app/Http/Controllers/Api/TopicsController.php
index 6eb5c4e..ace56eb 100644
--- a/app/Http/Controllers/Api/TopicsController.php
+++ b/app/Http/Controllers/Api/TopicsController.php
@@ -49,6 +49,11 @@ class TopicsController extends Controller
         return $this->response->paginator($topics, new TopicTransformer());
     }
 
+    public function show(Topic $topic)
+    {
+        return $this->response->item($topic, new TopicTransformer());
+    }
+
     /**
      * @param Topic $topic
      * @return \Dingo\Api\Http\Response
diff --git a/routes/api.php b/routes/api.php
index 2d167ab..6c5e680 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -55,6 +55,8 @@ $api->version('v1', [
         $api->get('topics', 'TopicsController@index')->name('api.topics.index');
         //某用户的话题列表
         $api->get('users/{user}/topics', 'TopicsController@userIndex')->name('api.users.topics.index');
+        //话题详情
+        $api->get('topics/{topic}', 'TopicsController@show')->name('api.topics.show');
     });
 
     // 需要 token 验证的接口