Objective The psychologic health level of college and secondaryschool students and the relevant factors were investigated to scientific basis and guidance for school mental health work.Methods Standard 1251 cases were drawn from 1‰ of students in colleges and middle schools of Shaanxi province.Taking 14 psychic health level indexes in SCL 90 as dependent variable and 109 indexes of psychic health back ground as in dependent variable, multi factor analyses have been made.Results 22.6% of students had relatively serious psychological problems.The score of SCL 90 in females was a little bit higher than that in males.The scores of students at both universities and senior middle schools were higher than that in junior middle schools students.The score of SCL 90 of students who came from the countryside was higher than that of city students.The score of the whole students was higher than that of the normal.The students with psychic problems showed obsession,interpersonal sensitivity,depression,anxiety,paranoia and hostility.Factor analysis showed that influencing factors included history of positive individual risking behavior,physical conditions,grade,address,family influences,menses and sexual prombles,bad relation with others,poor self assessment.Conclusion The psychologic health level of the students investigated is lower than that of the whole society.The factors,which hamper psychic health of students, are biological,psychological and social in nature. Objective The psychologic health level of college and secondaryschool students and the relevant factors were investigated to scientific basis and guidance for school mental health work. Methods Standard 1251 cases were drawn from 1 ‰ of students in colleges and middle schools of Shaanxi province .aking 14 psychic health level indexes in SCL 90 as dependent variable and 109 indexes of psychic health back ground as in dependent variable, multi factor analyzes have been made. Results 22.6% of students had relatively serious psychological problems. The score of SCL 90 in females was a little bit higher than that in males.The scores of students at both universities and senior middle schools were higher than that in junior middle schools students. score of SCL 90 of students who came from the countryside was higher than that of city students. score of the whole students was higher than that of the normal.The students with psychic problems showed obsession, interpersonal sensitiv ity, depression, anxiety, paranoia and hostility. Factor analysis showed that influencing factors included history of positive individual risking behavior, physical conditions, grade, address, family influences, menses and sexual prombles, bad relation with others, poor self assessment. Confclusion The psychologic health level of the students investigated is lower than that of the whole society.The factors, which hamper psychic health of students, are biological, psychological and social in nature.