The main purpose of this research was to investigate the current exercise social support, and to examine the relationships between exercise behavior and exercise social support. Among the colleges in Taiwan, 9 of them, including 1027 students, have been chosen to participate in this study. All the research data is derived from the questionnaire of exercise social support. The collected were analyzed by frequency, t-test, item analysis, factor analysis. The main findings of this study were as follows: 1. Students of male, collegiate athletes, exercise’s club members, like physical education, delight experience of exercise showed significantly higher mean scores on the exercise social support. Students of the freshman showed significantly higher mean scores on the exercise social support than sophomore, junior and senior students. 2. Subjects’ exercise behavior were highly correlated with their exercise social support.