Abstract:According to the application of the urban small-scale meteorological observation, by combining UAV technology, meteorological observation technology with the computer and communication technology, a set of multi element meteorological observation Unmanned Aerial Vehicle(UAV) system is designed, and the corresponding data acquisition and transmission module and the ground monitoring and display software are developed. The acquisition and real-time transmission of meteorological elements such as temperature, air pressure, relative humidity, wind speed, wind direction and particle concentration based on UAV platform are realized. Through the ground and air flight test data comparison and verification, the system is flexible, good operation, stable and reliable, and has good application prospect. It can be widely used in the fields of fine meteorological observation, emergency relief, environmental monitoring and so on.