Based on the GoldenBee CSR Report Assessment System 2020（GBEE-CRAS 2020），1730 Chinese corporate social responsibility （CSR） reports released by companies in China from January 1 to October 31，2020 are collected and assessed in this research. In combination of the research results since 2009，the main findings can be concluded as follows：nearly 90% of reports are issued by listed companies；70% are called “Social Responsibility Reports”，and the proportion of “Environmental，Social and Governance Reports” has risen to nearly 25%；the number and proportion of reports published in both Chinese and English have increased steadily，and the comprehensive index of the reports keeps at 1300 points；reports pay more attention to disclosing stakeholders information such as the environment，customers，suppliers，peers and media；the CSR reports of central SOEs remain top quality，leading CSR reporting in China；the quality of state-owned holding enterprises，foreign-invested companies and Hong Kong，Macao and Taiwan companies as well as private companies keeps continuous improvement；the Chinese companies listed in the Fortune Global 500 and China’s top 500 companies present higher quality than the average quality in China，and the improvement speed is faster；the gap of report quality among different industries，ownership and scale shows a narrowing trend；the number of CSR reports of non-listed companies decreased significantly；the report quality of mainland companies listed in Hong Kong continues to improve，and is significantly higher than that of mainland companies listed on SSE and SZSE. Some suggestions thus are put forward，such as to promote CSR disclosure to a new level during the 14th Five-Year Plan period；to enhance the information disclosure on social responsibility strategy and governance，material topic management；to further improve the comparability of CSR reports，to improve the information disclosure of greenhouse gases，biodiversity and ecosystem protection，employee health and safety，employee career development，and driving suppliers to fulfill their responsibilities；to call on the regulatory authorities to strengthen the guidance and regulation of social responsibility information disclosure of mainland companies listed on SSE and SZSE；to promote the non-listed companies to improve the initiative and quality of social responsibility information disclosure.