Objective To provide evidence for the education on sychological health for the undergraduates by analyzing the relationship among interpersonal relationship, coping style, self consistency and congruence of local college students. Methods uestionnaires about interpersonal relationship, coping style, and self consistency and congruence have been carried out on a stratified random sample of 1471 students from four local colleges. And all the data of the questionnaire scales will be dealt with by the software SPSS15.0. Results ①Total scores on interpersonal relationship and self consistency and congruence of male college students( (9.88 ±5.51 );(93.29 ± 13.48 ) respectively) were much higher than the scores of the female college students ( ( 8.84 ± 5.11 );(90.09 ± 12.60) respectively). Total scores of the above two items for the seniors( ( 10.26 ± 5.89 ); ( 96.79 ±12.93) respectively) were obviously higher than the total scores of students of other grades. For the engineering students, whose total scores on the two items( ( 10.26 ±5.86); (93.57 ± 12.83 ) respectively) were remarkably higher than the scores of students of other majors. Regarding the various factors of coping style, there are significant differences in gender, grade and major( P ＜ 0. 01 ). ②Concerning the college students, there were conspicuous relationship among their interpersonal relationship, coping style, self consistency and congruence ( P ＜ 0.01 ).③ Self consistency and congruence could be effectively predicted by factors, i.e. total score of interpersonai relationship, remorse, problem-solving, rationalizing, fantasy, recoil, help-seeking and grade. Conclusion Collegestudents' ability of self consistency and congruence is affected by their coping style and interpersonal relationship.To improve the individual' s ability of self consistency and congruence and the condition of their psychological health, the most effective way is to cultivate the capability on interpersonal communication and apply the positively flexible coping style.