diff --git a/data_juicer/ops/mapper/dialog_intent_detection_mapper.py b/data_juicer/ops/mapper/dialog_intent_detection_mapper.py
index 29392676..b32fd929 100644
--- a/data_juicer/ops/mapper/dialog_intent_detection_mapper.py
+++ b/data_juicer/ops/mapper/dialog_intent_detection_mapper.py
@@ -79,6 +79,8 @@ def __init__(self,
         Initialization method.
 
         :param api_model: API model name.
+        :param intent_candidates: The output intent candidates. Use the
+            intent labels of the open domain if it is None.
         :param max_round: The max num of round in the dialog to build the
             prompt.
         :param api_endpoint: URL endpoint for the API.
diff --git a/tests/ops/mapper/test_dialog_intent_detection_mapper.py b/tests/ops/mapper/test_dialog_intent_detection_mapper.py
index 82b2f98b..e7db2cea 100644
--- a/tests/ops/mapper/test_dialog_intent_detection_mapper.py
+++ b/tests/ops/mapper/test_dialog_intent_detection_mapper.py
@@ -136,6 +136,35 @@ def test_query(self):
                                             max_round=1)
         self._run_op(op, samples, 4)
 
+    def test_intent_candidates(self):
+        
+        samples = [{
+            'history': [
+                (
+                    '李莲花有口皆碑',
+                    '「微笑」过奖了，我也就是个普通大夫，没什么值得夸耀的。'
+                ),
+                (
+                    '是的，你确实是一个普通大夫，没什么值得夸耀的。',
+                    '「委屈」你这话说的，我也是尽心尽力治病救人了。'
+                ),
+                (
+                    '你自己说的呀，我现在说了，你又不高兴了。',
+                    'or of of of of or or and or of of of of of of of,,, '
+                ),
+                (
+                    '你在说什么我听不懂。',
+                    '「委屈」我也没说什么呀，就是觉得你有点冤枉我了'
+                )
+            ]
+        }]
+
+        op = DialogIntentDetectionMapper(
+            api_model='qwen2.5-72b-instruct',
+            intent_candidates=['评价', '讽刺', '表达困惑']
+            )
+        self._run_op(op, samples, 4)
+
 
 if __name__ == '__main__':
     unittest.main()