Purpose: This study aims to predict college students’ physical activity based on a hypothetically integrated model of stages of change for physical activity and theory of planned behavior. Methods: A total of 302 college students (male: 70.2%; female: 29.8%; Meanage= 23.6 years old) participated in the survey. Attitude scale, the subjective norm scale, perceived behavioral control scale, stages of change scale and physical activity scale were used. Results: As a result of a path analysis, in the TPB constructs, perceived behavioral control had a statistically significant impact on the stages of change for physical activity (.34). In addition, perceived behavioral control had direct impacts on physical activity (.44). The stages of change for physical activity had an impact on physical activity (.23) Conclusion: The results of this study suggest a possibility of a theoretical integrated study on psychological variables with college students. The current study points out that further studies should be carried out to verify the effectiveness of the integrated model to explain physical activity.