China University Subject Rankings (CUSR) evaluate the subjects of universities and colleges in Mainland China in accordance with the Subject Catalogue of Degree Awarding and Personnel Training approved by the Ministry of Education. It is a non-profit program organized by China Academic Degrees and Graduate Education Development Centre (CDGDC) as an independent legal entity. Commenced in 2002, CUSR has completed four rounds of evaluations by 2017. The 4th CUSR was launched in April 2016 under the principle of “voluntary and free participation”, and there were 7449 subjects from 513 universities and colleges applied. Combining objective calculation of data and peer review, a number of innovations have been made in the 4th CUSR based on previous experiences. The data come from officially released information for public use and the materials submitted by the universities and colleges for evaluation, both of which are subject to vigorous verification by CDGDC. Its results were first sorted into “grades” by the percentile of the overall score, and released to the public the top 70% of each subject. The result in each subject has 9 grades: A+ for the top 2% (or top 2) , A for 2%~5% (2% excluded, the same below), A- for 5%~10%, B+ for 10%~20%, B for 20%~30%, B- for 30%~40%, C+ for 40%~50%, C for 50%~60% and C- for 60%~70%. CUSR aims to assist the participating universities and institutions to be acquaintance of the merits and demerits of their subject constructions, and provides relevant information for national graduate education. It also serves as a reference for students’ determination of their majors in future schools, and a platform for the public to learn about the achievements and conditions of the subject construction of higher education in China.