From 193 1, Hua worked and studied in Tsinghua University, and completed all the courses in the Department of Mathematics in one and a half years. He taught himself English, French and German. After publishing three papers in foreign magazines, he was appointed as a teaching assistant. 1In the summer of 936, Hua was sent to Cambridge University in England for further study, and published more than ten papers in two years, which was appreciated by the international mathematics community. From 65438 to 0938, Hua returned from a visit to Britain and served as Professor The National SouthWest Associated University. In a small attic like a cowshed on the outskirts of Kunming, he struggled to write the famous book "The Theory of Prime Number of Stacking Bases". 1March, 946, invited to visit the Soviet Union. After returning home, despite the restrictions of the reactionary authorities, he gave the youth a report on his "visit to the Soviet Union in March" in Kunming. 1946 In September, Hua went to the United States to give lectures at the invitation of Princeton University, and was hired as a tenured professor by the University of Illinois from 1948. Soon, my wife came to America with her three sons to reunite with her.

1949, Hua resolutely gave up her comfortable life and returned to the motherland with her family. 1March, 950, went to Beijing, and later served as the head of the Department of Mathematics of Tsinghua University and the director of the Institute of Mathematics of Chinese Academy of Sciences. In the 1950s, under the academic atmosphere of letting a hundred flowers blossom and a hundred schools of thought contend, he wrote a lot, and also discovered and trained mathematics talents such as Wang Yuan and Chen Jingrun. 1956, he set out to build the Institute of Computational Mathematics of China Academy of Sciences. 65438-0958: Vice President of China University of Science and Technology and Head of the Department of Mathematics. From 1960, China began to popularize the overall planning method and optimization method in industrial and agricultural production, covering 27 provinces, municipalities and autonomous regions, creating huge material wealth and economic benefits. 1978 served as vice president of China Academy of Sciences in March, and joined the Party the following year.

In his later years, despite his advanced age and lack of physical strength, Hua was still fighting in the front line of construction. He was also invited to give lectures in Europe, America and Hong Kong for many times, and was awarded honorary doctorates by Nancy University in France, the University of Illinois in the United States and the Chinese University of Hong Kong. He was also elected as a foreign academician of the American Academy of Sciences by a unanimous vote of 1984. 1June 2, 985, died of a heart attack while giving an academic report in Tokyo, Japan, at the age of 74.