The invention discloses an earth station electromagnetic environment interference measuring device, and relates to the technical field of radio communication. The device comprises a supporting device,an azimuth rotating platform, a standard gain receiving antenna, a polarization adjusting device, a dual-channel gating switch, a low-noise amplifier, a multi-channel matrix gating switch and a turntable controller. The device has the characteristics of simple structure, small size, light weight, convenience in operation and low processing cost, can realize measurement of multi-band interferencesignals, obtains the nature of an interference source and the infinite radiation compatibility of a selected station address and various interference sources, and finally determines whether the earthstation address meets the station building requirement or not. The device is especially suitable for early-stage electromagnetic environment interference source measurement during earth station antenna station building, and can provide important reference basis for earth station design, building and construction.