目的 调查陕西省榆林地区中、小学生的膳食营养特点，为该地区中、小学开展营养健康教育提供依据。方法 2011年1月初到陕西省榆林地区中、小学校，采取分层随机整群抽样法选取765名中、小学生，采用24 h回顾法结合逐个询问的方法，记录连续3 d的食物种类和数量。结果 谷类食物摄入量占推荐量的92%，肉类、蛋类摄入量严重不足，不到推荐量的5%;蛋白质摄入量处于推荐量的底线;并且蛋白质主要来源于谷类等植物性食物。结论 应改善榆林地区中、小学生的膳食结构，增加肉类、蛋类、牛奶等动物性食物的摄入，促进学生的健康成长。

Objective To investigate the nutrition characteristics of primary and middle school students in Yulin region of Shaanxi Province,and provide evidence for nutrition and health education of this area. Methods In Jan.2011,765 of primary and middle school students in Yulin area of Shaanxi were accessed through 24 hours recall and asking one by one,food type and quantity of 3 days were recorded. Results The intake of grain food were 92% of RNI,and the intake of meat and eggs were severely deficient,less than 5% of RNI; the intake of protein of students was base line of RNI.Furthermore,protein mainly came from plant food such as grain,rarely from animal food. Conclusion Some measures should be taken such as to improve the dietary pattern of students in Yulin area,increase the intake of animal food such as meat,eggs and milk etc.,and promote healthy development of students.