目的探讨学习成绩与学生健康饮食行为之间可能关联性,为营养干预提供科学依据。方法采用问卷,调查吃蔬菜、吃水果、吃早餐、喝牛奶报告率,共调查25 710名13~22岁学生。采用Epi Data 3.1和SPSS 11.5对资料进行统计,计数资料用χ2检验。P<0.05为差异有统计学意义。结果 5个学习成绩水平之间,不论性别,4种健康饮食行为报告率差异均有统计学意义(均P<0.001),一般地,学习成绩优良报告率较高,吃蔬菜、吃水果、经常吃早餐、较常喝牛奶报告率,男生分别为72.99%、48.37%、83.57%、67.53%,女生分别为72.69%、58.38%、83.99%、64.68%;学习成绩差报告率较低,男生分别为61.25%、37.72%、68.12%、52.19%,女生分别为64.35%、51.38%、69.92%、52.91%。结论各方面健康饮食行为与相对学习成绩之间存在关联。学习成绩差的学生需要更多关注。 Objective To explore the possible correlation between academic performance and students’ healthy dietary behaviors and to provide a scientific basis for nutrition intervention. Methods A questionnaire was used to survey 257 students aged 13 to 22 who ate vegetables, eat fruits, eat breakfast, and reported the rate of drinking milk. Data were statistically analyzed using Epi Data 3.1 and SPSS 11.5, and count data were analyzed using χ2 test. P <0.05 for the difference was statistically significant. Results There were significant differences in reported rates of 4 healthy eating behaviors between the 5 grades (all P <0.001). Generally speaking, the results were reported with excellent grades, eating vegetables, eating fruits, and often Breakfast, drink more milk report rate, boys were 72.99%, 48.37%, 83.57%, 67.53%, girls were 72.69%, 58.38%, 83.99%, 64.68%; poor academic performance reported a low rate of boys 61.25%, 37.72%, 68.12% and 52.19% respectively, and girls were 64.35%, 51.38%, 69.92% and 52.91% respectively. Conclusion There is a correlation between healthy diet behavior and relative academic performance in all aspects. Students with poor grades need more attention.