The grand gathering of Shanghai Institute of Cell Biology of Chinese Academy of Sciences was held in 1982 in memory of the 20th anniversary of the death of Professor Zhu Xian, the former director of the institute and famous experimental biologist. Many theoretical research breakthroughs made by Professor Zhu Xian in the past 40 years are introduced. There are scenes of his friends’ watching the specimen, including Professor Chen Jianshan , former curator of Taiwan Museum, and Professor Zhang Zuoren of East China Normal University.