Objective:To knowthe breakfast composition status of rural boarding middle school students in Chongqing

so as to provide guidelines for developing intervention of diet behaviors. Methods:The breakfast structure and the nutrition knowledge of 3 547 students in rural boarding middle school in Chongqing were investigated by adopting stratified two-stage cluster sampling method. Results:The percentage of students who ate breakfast everyday and who generally did not were 70.07% and 2.54% respectively

the percentage ofstudents who consumed grains were 80.05%

whereas the beans were 18.23%

which was the lowest. 21.81% students only ate one of the five kinds of food

including grains

vegetables

fruits

beans and milk products

and 14.72% students ate four more kinds of them. The main diet assortment of breakfast was basically grains

vegetables and fruits. The average score of students’nutrition knowledge was 10.41. The correlation coefficient between the score of students’nutrition knowledge and the quality of breakfast was r=0.062 23

P= 0.000 2. Conclusion : The breakfast quality of rural boarding middle school students in Chongqing needs to be improved

and more knowledge about resource of nutrient is supposed to be acquired.