This study employs corporate social responsibility (CSR) index: Taiwan Employment 99 (EMP 99), launched by Taiwan Securities Exchange to investigate the relationship between CSR emphasizing on employment creation and firm value. The empirical period is from 2011 to 2015. Empirical study results find that when this study comes without considering the level of customer awareness, the link between CSR and firm value is insignificant. Market intensity significantly and positively moderates the link between CSR and firm value, indicating that EMP 99 constituents with higher customer awareness have higher firm value. Therefore, when customers understand that firms make efforts to social responsibility, the firms can improve their firm image and, in turn, enhance firm value. Robustness tests suggest that there is a moderating effect between CSR and firm value.