Abstract: Based on the long-term (1931—1979) and high qualitative marine observational data set and selecting appropriate parameters to the study areas, the air-sea fluxes of heat, moisture and different components of oceanic heat budget over the neighbouring seas of China were computed on a regular 2°×2° latitude/longitude grid and the yearly and monthly distributions and spatial-temporal variations of them were analyzed. According to the heat net budget of the surface, the marine climatic compartments were made.