Recently, corporate social activities are changing in Korean society. It extends beyond the scope of moral responsibility and social and ethical responsibility of corporations to various social contribution activities. When a customer is exposed to CSR, which is continuously evolving and diversifying, the customer has a positive image of the brand, and the intention to purchase the product or service increases. In this regard, for empirical analysis, to chose pharmaceutical companies that have a sense of responsibility for society and people. The effect of brand perceived quality and CSR on purchasing intention was evaluated statistically by selecting Donghwa pharmaceutical company. As a result, perceived quality and CSR of brand affects consumers purchase intention. Also, it was confirmed that quality is one of the factors influencing purchase intention. These results suggest that it is necessary to introduce active and strategic corporate social responsibility activities beyond the minimum CSR in order to increase the purchasing intention of the consumers.