This thesis investigates whether investors reward firms who fulfill the social responsibilities. The samples included Taiwanese listed companies from 2007 to 2016.The empirical results show that the more social responsibilities the firms are engaged in, the more intangible asset they create. Also, when the firms are deeply involved in social responsibilities, the market would give greater valuation on unexpected earnings with the larger earnings response coefficient. However, it only happened when the unexpected earnings are negative. If the unexpected earnings are positive, the effect didn’t exist. Finally, if the firms take on social responsibilities, they do have better earnings persistence.