Li Dongsheng was born in Hequ, Shanxi. Special-grade teacher of Taiyuan Foreign Language School, member of the Examination and Approval Committee of Middle School Textbooks of the Ministry of Education, member of chinese mathematical society, and head of the preparatory group of Shanxi Thinking Education Research Association. Concepts of thinking quality such as "fuzzy thinking" and "thinking education" won the Jiangsu Mathematics Education Award 1996, and received special allowance from the State Council in the same year. Taiyuan's first and second outstanding experts, national outstanding teachers, model workers in Shanxi Province.

He has successively undertaken such topics as "Thinking and Mathematics Teaching" and "Teaching Research on Solving Problems by Mathematical Structure Method in Senior High School" and won the second prize of educational and scientific research achievements. He published 18 supplementary books, and published more than 200 papers, about 6 million words, in educational theory and practice, Journal of Gansu Institute of Education, Journal of Mathematics Education, and Research on Educational Science, among which 12 outstanding papers won the second prize of national and provincial societies.