CSR index is a composite index used to rate the CSR management system status and CSR information disclosure level of Chinese companies. The research approach for Chinese CSR development index is as follows: first, a four-in-one theoretical model consisting of responsibility management, economic, social and environmental responsibilities continues to be used to optimize the industry-specific CSR indicator system by making reference to ISO26000 and other international CSR indices, domestic CSR initiatives and world top 500’s CSR reports; the next step involves acquiring CSR information of China top 100 from their CSR reports, annual reports and official websites,Last, content analysis and quantitative assessment of CSR information is conducted to obtain the initial ratings of CSR index, which is then readjusted based on CSR awards and honors, lack of responsibility and innovative responsibility management practices.