The year 2020 is the centenary of Mr. Gu Zhenchao’s birth. Mr. Gu was one of the main foun-ders and creators of modern Chinese synoptic meteorology, having made outstanding contributions to Chinese synoptic research and modern weather forecasting operation. He had a profound theoretical foundation of meteorological research, good at grasping the essence from complex weather phenomena, and had insight into the world frontiers and the development direction of weather forecasting operations at that time. He adapted the western synoptic theory and research results to Chinese actual needs, managing to work out the creative solutions to the theoretical and practical problems of synoptic science in China and putting forward many original ideas and facts. He also further applied scientific research results to the operational forecasting practice, which effectively promoted the development and modernization of China’s weather forecasting services. This article reviews and sorts out Mr. Gu Zhenchao’s outstanding contributions to Chinese synoptic meteorology from seven aspects in order to commemorate and remember him.