The invention discloses a 30-3000 MHz ultrashort wave receiver consisting of a channel unit, a first local oscillator unit, a second local oscillator unit and a third local oscillator unit, wherein the local oscillator signal output of the first local oscillator unit is connected with the input of a first medium mixer, the local oscillator signal output of the second local oscillator unit is connected with the input of a second medium mixer, and the local oscillator signal output of the third local oscillator unit is connected with the input of a third medium mixer. The 30-3000 MHz ultrashort wave receiver disclosed by the invention can stably receive 30-3000 MHz ultrashort wave signals and output the 30-3000 MHz ultrashort wave signals at a medium frequency of 70 MHz, the amplitude of the medium frequency can be stably output within a required range, and if 5 receivers simultaneously work, a maximal frequency coverage range can achieve 100 MHZ, and the frequency can automatically correct at a ultrashort wave frequency band; and the 30-3000 MHz ultra-short wave receiver disclosed by the invention has the advantages of strong signal detecting capability, low error rate, few signal distortion conditions, high signal to noise ratio, good spurious suppression effect, strong anti-interference capability, good ultra-short wave communication effect, simple structure and low cost, and the like.