This study is a descriptive research with a purpose of examining the effects of health perception, self-efficacy and social support of college students on the health promotion behaviors. The subjects of this study have targeted 196 college students, where the data collection was made from September 10, 2018 to October 5, 2018. As a result of analyzing the differences in health promoting behaviors according to general characteristics of college students, there was a statistically significant difference according to the residence type(F=8.56, p<.001), subjective health status(F=7.23, p=.001), university life satisfaction(F=8.50, p<.001), exercise status(t=6.62, p<.001), and number of breakfasts per week(F=14.13, p<.001). For the correlation between college students' health perception, self-efficacy, social support, and health promotion behaviors, health promotion behavior and health perception(r=44, p<.001), self-efficacy(r=.57, p<.001), and social support(r=.49, p<.001) has shown a significant positive correlation between them. As a result of conducting multiple regression analysis by setting general characteristics, health perception, self-efficacy and social support as independent variables in order to analyze the factors affecting health promotion behaviors of college students, The variables that have significant explanatory power on health promoting behaviors(F=34.921, p<.001) were self-efficacy, social support, number of breakfasts per week(more than 5times), whether or not to exercise, number of breakfasts per week(2 to 4times), rent and lodging for residential type, and for grade, seniors. The explanatory power of these factors on health promotion behaviors was a total of 56.9%. Conclusively, In order to Improving health promotion behavior requires the development and intervention of personalized health promotion programs for each generation that consider self-efficacy and social support and emphasize the importance of proper exercise and proper eating habits.