This standard defines the overall framework of the ocean hydrology-meteorological observation system. This standard standardizes the system function composition, data structure type, data transmission format and protocol, as well as the input and output interface. The system supports automatic measurement of buoys, submersibles, shore station instruments, etc., with output interfaces, and provides observations on water temperature, salinity, depth, current, ocean wave, temperature, pressure, humidity, wind, visibility, precipitation, etc. The ability to receive, store, display, process, and analyze data. This standard is developed for both observing system developers and ocean observers.