Based on the transactional stress theory，it used the sample of 1 884 entrepreneurs from the 2014 Chinese Private Enterprise Survey Database to construct a model examining the impact of private entrepreneurs’ external risk perception on corporate social responsibility. It also explored the mediating role of duty orientation， and the moderating role of entrepreneurs’ CCP membership and grassroots experience. The results show that： entrepreneurs’ external risk perception negatively affects duty orientation， thereby reducing corporate social responsibility； CCP membership weakens the negative relationship between external risk perception and duty orientation； when the entrepreneurs have both CCP membership and grassroots experience， external risk perception positively affects duty orientation， thereby increasing corporate social responsibility. The conclusion highlights the important roles of CCP membership and grassroots experience during stress appraisal， enriches the research in the field of CCP executives， and reveals the significance of CCP entrepreneurs conducting in-depth grassroots work.