The invention relates to a Beidou receiver based on a cloud platform. The Beidou receiver is formed by a Beidou terminal and a cloud platform, wherein the Beidou terminal comprises an antenna module, a radio frequency front end module, a baseband processing module and a man-machine interaction module. The radio frequency front end module comprises a pre-amplifier unit, a down-conversion unit and an analog-to-digital conversion unit. The baseband processing module comprises a digital signal processing unit and a signal tracking loop unit. The pre-amplifier unit amplifies satellite signals to obtain high-frequency simulation signals. The down-conversion unit converts frequency of the high-frequency signals to obtain intermediate-frequency simulation signals. The analog-to-digital unit converts modulus of the intermediate-frequency simulation signals to obtain digital signals. The digital signal processing unit analyzes the digital signals to obtain original information streams. The signal tracking loop unit demodulates the original information streams to obtain navigation messages. The cloud platform obtains positioning information according to the navigation messages, and the man-machine interaction module displays positioning information. The Beidou receiver reduces data processing amount and improves instantaneity of navigation.