The utility model provides a meteorological monitoring system based on many rotor unmanned aerial vehicle, it includes unmanned aerial vehicle data acquisition unit and ground satellite station's unit, the unmanned aerial vehicle data acquisition unit the machine carries GPS and acquires position data, the meteorological data detector passes through machine year master controller MCU turns into digital signal transmission with the meteorological data signal of telecommunication that records and passes emission module for machine year GE number, ground satellite station's unit includes that ground GE number passes receiving module, ground master controller MCU and host computer, ground GE number passes receiving module and receives the machine carries the data that the GE number passed the emission module transmission, ground master controller MCU reads ground GE number and passes the data that receiving module received to transmit to the host computer, the host computer is analyzed data, obtains the meteorological data of position, through the embedded screen display of UI interface mode at ground satellite station's unit. The utility model provides a based on with low costs, the flexible operation of humiture measurement system of many rotor unmanned aerial vehicle platform, and maintain more easily.