The paper explores the binary mode of entrepreneurial social network basing on social network research and entrepreneurial study. The paper found the binary mode of entrepreneurial social network that included social network on relationship and social network on benefit. This kind of mode can strengthen the entrepreneur to obtain resource and enhance performance. At same time, it is helpful to pursue new opportunity for the firm. It had also enlightened the researcher to understand the key value of the social network deeply. On the other hand, the 125 valid and test questionnaire and 225 formal survey data from Sunan area were returned and analyzed. The paper indicates that the entrepreneurial social network has evolved with the different feature constantly.