The purpose of the study is to explore the effects of caused-related marketing on corporate image, customer value and customer loyalty. The study selects the customers of Chunghwa Post Office as the research objects, and collects 669 valid samples. The purposes of the research are to explore the effects of caused-related marketing, corporate image, customer value on customer loyalty and the mediating effect of corporate image and customer value. The method of regression analysis is used to test the hypotheses. The results indicate that caused-related marketing has significant positive effects on corporate image and customer value. Besides, corporate image and customer value have significant positive effects on customer loyalty, and corporate image and customer value have a partial mediating effect between caused-related marketing and customer loyalty. Finally, the study discussed the managerial implications and proposed some suggestions for practitioners and further research.