diff --git a/app/api/v1/record.py b/app/api/v1/record.py
index 11f9ea6..663993c 100644
--- a/app/api/v1/record.py
+++ b/app/api/v1/record.py
@@ -54,7 +54,7 @@ def get_records(query_data):
 
 
 @record.get('/chart')
-@record.doc(summary='查询身体记录图表', description='查询身体记录图表')
+@record.doc(summary='查询身体记录图表', description='查询身体记录图表。注：period 参数有 ["week", "day", "month"] 三个选项，如果不传，则默认是 week')
 @record.input(BodyRecordChartIn, location='query')
 @record.output(BodyRecordChartOut)
 @login_required