To better understand the relationship between the main factors affecting the mental health of college students as well as psychological symptoms between a university's 2011' students' psychological test data, the research uses statistical analysis and association rule mining two species method. From gender, only-child or not, native place, student cadre or not, family structure, family's monthly income to analysis research. According to the research results will help educators to get a deeper understanding of students' mental health problems and provide a basis for them to make plans and decisions about college studnets' psychological educaiton.