探讨成都市龙泉驿区小学生早餐行为及营养状况，为开展学校营养教育提供科学依据。

2012年4月至7月采用随机整群抽样方法，首先随机选择成都市龙泉驿区10所小学，再从每所小学的每个年级随机抽取4～5个班学生，如一个年级不足4个班，则全部抽取，共计抽取8139名小学生为研究对象。采用问卷调查方式收集其早餐行为信息，进行早餐营养质量评价，并进行相关统计学评价。

本组问卷的有效回收率为97.63%(7946/8139)。其中，67.7%小学生每周早餐5～7次，男、女学生每周早餐频次比较，差异无统计学意义(χ²＝6.505，P＝0.089)；47.2%早餐来源于母亲准备；79.4%主要在家用早餐；80.6%小学生的早餐营养质量较差，男、女生早餐营养价值比较，差异无统计学意义(χ²＝5.646, P>0.05)。

龙泉驿区小学生早餐行为存在一些不合理方面，早餐营养质量较差，应改善其早餐的食物结构，提供营养素均衡的早餐，促进小学生的健康。

To investigate the breakfast behaviors and nutritional quality in primary students in Long Quan-yi District of Chengdu, and to provide scientific evidence for developing nutrition education in primary schools.

During April to July 2012, a total of 8139 primary students were recruited by Random clustering sampling method. A questionnaire survey was used to collect their breakfast behavior information, and to evaluate breakfast nutritional quality among 8139 primary students from Long Quan-yi District of Chengdu.

In this study, effective recovery rate of research questionnaire was 97.63%(7946/8139). among 7946 primary students, the rate of having breakfast 5-7 times a week was 67.7%, there had no significance difference between girls and boys in weekly breakfast frequency and proportion(χ²=6.505, P=0.089); mother prepare breakfast rate was 47.2%; having breakfast at home rate was 79.4%; rate of poor nutritional quality in breakfast was 80.6%, and there also had no significance difference between girls and boys(χ²=5.646, P>0.05).

Primary students are one of the focal target people for preventing unhealthy dietary behaviors due to shortcomings of eating breakfast. It is necessary to improve the nutritional quality of breakfast for better health of primary students.