The UniversityofSussex is not a first-class university, but a prestigious higher education institution in Britain. Double first-class universities are a higher education evaluation and classification plan launched by the Ministry of Education of China in October-October-July, aiming at improving the quality and international competitiveness of higher education in China. The evaluation evaluates and classifies universities according to a series of indicators, including teaching quality, scientific research, discipline construction and social influence. Although the University of Sussex has a good academic reputation and research strength, it is not included in the list of top-ranking universities in China's Ministry of Education. The evaluation of double first-class universities is a unique evaluation system in China, which does not represent the international common evaluation standard. It should be emphasized that the reputation and quality of a school depends not only on its classification, but also on its teaching quality, research level, discipline strength, teachers and student support.