192 1 graduated from Tsinghua University. He was sent to the University of Wisconsin to study theoretical chemistry, write a paper on artificial gasoline and get a bachelor's degree. Later, he entered Columbia University College and Massachusetts Institute of Technology, studied applied chemistry and physical chemistry, and obtained the degree of chemical engineer.

1927, Ph.D. in chemical engineering from Graduate School of Columbia University, was employed as the chief designer of Rogers Chemical Engineering Company in the United States.

/kloc-in the summer of 0/928, he resolutely returned to China. After returning to China, Li Yunhua successively served as the director of technical department and industrial department of Guangxi Construction Department, and was a professor at Fudan University, Tsinghua University, Peking University and Beijing Normal University.

From 65438 to 0935, he served as the director of Guangxi Chemical Laboratory and Scientific Research Institute, and later served as the dean of Engineering College of Guangxi University, the provost of Guangxi University and the director of Guangxi Industrial Laboratory.

1autumn of 944, president of Guangxi University.

1in the summer of 945, he served as the deputy director of Guangxi Branch of National Disaster Relief Administration, handling the United Nations relief work in China. After War of Resistance against Japanese Aggression's victory, he successively served as a member of the Standing Committee of the National Defense Science Committee, a member of the Examination Institute and a professor at Nanjing Central University.

After the establishment of People's Republic of China (PRC), he served as the director of the Department of Scientific Research and Chemistry of Tropical Crops in South China and the director of the Physical and Chemical Research Office of the Ministry of Agriculture.