The research object of this paper is 251 private equitybacked enterprises (PEbacked enterprises) which go public on the software and information technology services of National Equities Exchange and Quotations (NEEQ) This paper uses the empirical method to analyze the relationship between the social responsibility performance of PEbacked enterprises and its profitability It reveals that there is a significantly positive correlation between performance of responsibility of PEbacked enterprises to government, shareholders, creditors, managers, employees, customers, society and its profitability The number of PE which invests in one enterprise has a significantly negative correlation with its profitability Additionally, responsibility to supplier and PE total proportion of investment have no significant correlation with its profitability