Prof. Gu Zhenchao has been away from us for 45 years, but our yearning for him has not decreased at all. Now a short article is written to express the deep nostalgia for him. Prof. Gu Zhenchao was born in Shanghai in 1920 and died in 1976. He graduated from the Graduate School of Southwest United University and then studied for a doctorate in meteorology at Stockholm University in 1947, under the international famous meteorologist C.G. Rossby. Due to the urgent need of the motherland’s meteorological development he returned China in May 1950. He was appointed as the director of “Joint Weather Analysis and Forecast Center”, and then the first director of the Institute of Atmospheric Physics, Chinese Academy of Sciences. He worked hard for the country and the people, and dedicated his life. As an excellent scientist, he has made great contributions to the development of meteorology and atmospheric science, including synoptic meteorology, dynamic meteorology, numerical weather forecast, Qinghai-Tibet Plateau meteorology, cloud and precipitation physics, weather modification and atmospheric physics and so on. He was one of the main pioneers and founders of Chinese meteorology. His academic thought is a valuable wealth, which is of great significance today and in the future.