Corporate social responsibility (CSR) refers to the set of behaviors that businesses ought to or are expected to perform in a society. Many companies expect to increase profits through CSR behavior. However, it is a reasonable question to consider whether employees commit to an organization when they do not agree with the organizations’ CSR behavior. Therefore, this study explores the effect of fit between employees’ perceptions of CSR and organizations’ CSR behavior on organization commitment. This study found that the fit between employees’ perceptions and organizations’ CSR behavior has a positive effect on commitment. Among the four CSR dimensions of economic, legal, ethical and philanthropic social responsibility, all dimensions excluding philanthropic responsibility are positively related to organizational commitment. Finally, comparing the effects of fit in Korea and China the effect of fit for ethical social responsibility differed between the two countries.