Lin Changshan, born in Fujian, received a master of science in 1938 from Department of Biology at Yanjing University. Then he taught successively at Yanjing University, University of China, and Fu Jen Catholic University. In 1951, Lin received a doctoral degree in entomology from the University of Minnesota.
After returning to China, Lin served as a professor and dean at Yanjing University first and then Beijing University.
In addition, Lin served as the president of Beijing Entomological Society, China Zoological Society, Entomological Society of China, and Ecological Society of China.
Lin’s research in the occurring theory of army worms and its application received a second prize of National Science and Technology Progress Award. In 1989, Lin published his book “Environmental Biology” which was used widely as a college textbook.