The purpose of this study is to examine the influences of social responsibility and culture marketing on corporate image and brand equity in the casual wear market. In addition, whether corporate image and brand equity have impact on purchase intention is investigated among high school students in a local area. Two casual brands, Polham and Tate are selected for this study. The data are collected from male and female adolescents living in a local area with convenience sampling method. A total of 402 useful data are analyzed by SPSS 14.0 program. The results of this study are as follows. First, there are significant relationships among corporate social responsibility, culture marketing, corporate image, and brand equity of two brands. Second, environmental cultural support, social contribution, and economical responsibility of CSR present positive influences on corporate image and brand equity in common between two brands. Especially environmental cultural support of fashion business is highly important to improve corporate image and brand equity. Third, cultural direction and cultural business marketing are more influential than cultural sales promotion or cultural support marketing to improve corporate image and brand equity. Fourth, corporate image does not have a direct influence on the purchase intention, but brand equity factors show significant influences on the purchase intention. In conclusion, fashion companies should commit to perform corporate social responsibility and culture marketing that are suitable to target market for the long term, since these efforts would improve corporate image and build brand equity.