This comrade is engaged in computational mathematics, especially the theoretical and numerical calculation of nonlinear approximation and optimization and its complexity research. This topic involves many branches of modern mathematics, which is difficult and has important theoretical value, and has broad application prospects in information science fields such as image processing and artificial intelligence. As the host, he completed 2 national natural science foundation projects and 2 provincial and ministerial natural science foundation projects. At present, there are projects 1 supported by National Natural Science Foundation, Provincial Natural Science Foundation and Outstanding Young Teachers Fund of Ministry of Education. In the research of these subjects, Comrade Li Chong has made systematic and fruitful achievements. He not only solved many outstanding and important problems left by predecessors, but also completed many important original works. These achievements are in a leading position in China, and some of them have reached the international advanced level. He also published more than 50 high-quality academic papers in important journals at home and abroad, of which more than 20 were included in SCI. Published an academic monograph (co-author) in the series of modern mathematics basic books of Science Press. Another academic work co-authored by others has been funded by the Publishing Fund of the National Natural Science Foundation and the Publishing Fund of China Academy of Sciences, and will be published in the series of Pure Mathematics and Applied Mathematics by Science Press in the near future. Its achievements have won the first prize (ranked second) and the second prize (ranked first) of the Zhejiang Education Commission for Scientific and Technological Progress, and the second prize of Zhejiang Excellent Paper on Natural Science for ranking first and second.