Hua Yu 1924 studied in Shanghai China Vocational School for less than one year after graduating from junior high school. He dropped out of school because of his poor family. He studied mathematics hard and published an article on solving algebraic equations in Science at 1930, which attracted the attention of mathematician Xiong Qinglai and was invited to work in Tsinghua University. He began to study number theory. 1934 became a researcher of China Education and Culture Foundation. 1936 went to Cambridge University as a visiting scholar. 1938 returned to China and was employed by Professor The National SouthWest Associated University. 1946 visited the Soviet union at the invitation of the Soviet academy of sciences. In the same year, he was invited to be a researcher at Princeton Institute for Advanced Studies. He taught at Princeton University from 65438 to 0948 and returned to China as a professor at the University of Illinois from 65438 to 0950. He has served as Professor Tsinghua University, Director and Vice President of the Department of Mathematics of China University of Science and Technology, Director of the Institute of Mathematics of China Academy of Sciences and Director of the Institute of Applied Mathematics of China Academy of Sciences. Vice President of China Academy of Sciences, etc. Hua is also the first, second, third, fourth and fifth members of the Standing Committee, and the sixth vice chairman of Chinese People's Political Consultative Conference. Hua is a mathematician who enjoys an international reputation. He has made outstanding contributions in a wide range of mathematical fields, such as analytic number theory, matrix geometry, theory of multiple complex variables and partial differential equations. Because of his contribution, many theorems, lemmas, inequalities and methods are named after him. In order to popularize the optimization method, Hua personally led a small team to popularize the application of mathematical methods in 27 provinces and cities in the past 20 years, which achieved obvious economic and social benefits and made great contributions to China's economic construction.