Objective To have knowledge about the incidence and relevant influencing factors of temporomandibular disorders（TMD）in higher vocational college students.Method An oral examination was conducted for 2 816higher vocational college students and a survey was conducted using questionnaires.Results Total incidence rate of TMD was 25.67%;incidence rate in the male was 20.05% while that in the female was 30. 02%

and the difference was statistically significant（P<0.05）.Usual symptoms of TMD were joint click

abnormal mandibular movement and joint pain respectively.Proportion of patients who had psychological stress for TMD

malocclusion and unilateral chew in the TMD group was higher than the group without TMD

and the difference was statistically significant（P<0.05）.Conclusion Incidence rate of TMD in higher vocational college students is relatively high.Incidence rate in the female is higher than the male

and nervous psychology and occlusion factor are major influencing factors.Institutes of higher education shall strengthen education on oral health care and psychological health for higher vocational college students to reduce incidence rate of these diseases.