Individuals’ experiences of success or failure stored in their mind will affect their decision-making about stimulus events, and improving the general sense of self-efficacy can help the individual better complete the unexpected challenges in life. This study will explore whether cognitive reappraisal plays a mediating role between positive coping style. and general self-efficacy, hoping to find a way to improve the level of self-efficacy of college students after further understanding the mechanism of self-efficacy. The study mainly adopts the questionnaire survey method, including the simple coping style. questionnaire, the general selfefficacy questionnaire and the emotion regulation scale questionnaire. The subjects are 731 college students in Guangdong Province. After analyzing the results, it is found that the general self-efficacy of college students differed significantly by gender. Positive coping style, general self-efficacy and cognitive reappraisal were correlated. The positive coping style. can positively predict the general self-efficacy of college students. Cognitive reappraisal mediates the relationship between positive coping style. and general self-efficacy. Conclusion: Positive coping style. can predict college studentsgeneral self-efficacy, and indirectly affect college studentsgeneral self-efficacy through the mediating effect of cognitive reappraisal. Therefore, college students should master proactive coping strategies and choose appropriate emotion regulation strategies, which will contribute to enhancing their overall self-efficacy and subsequently coping with challenges in life.
