Objective:To evaluate the diet quality of students in the technical college with Diet Balance Index(DBI),so as to provide the basis for nutritional intervention based on the Dietary Guidelines. Methods:Total 747 students were randomly selected by cluster sampling,their food intakes were investigated with the 24-hour record. The diet quality was evaluated by DBI-07 scoring. Results:Poor food intake was the main problem among these students,while excessive food intake problem also existed. The diet mode C was the main mode for most of the students. Conclusion:There are nutritional problems among the students in the technical college. Targeted nutritional education should be carried out,and the intake should be increased for fruits,milk,eggs and fish to improve the nutritional quality of the students.