This study is to find out the factors, which cause the college students to influence their peers, when they undertake recreational activities and also to find out whether the factors differentiate because of the various backgrounds. The subjects of the study are 400 students from Nan Kai College who are randomly drawn. They are given questionnaires in order to collect data. Basic data are analyzed by means of T-test or ANOVA. The results are as follows: Firstly, in terms of human relationship, personality and traditional model students, factors of peers influence vary obviously because of different genders. Secondly, in terms of human relationship, people who are noticed, concept of region vary because of different length of ages.