The invention relates to a millimeter wave multi-feed-source compact range testing system which comprises nine millimeter wave feed sources (1, 2, 3, 4, 5, 6, 7, 8 and 9) at different positions, a reflecting surface (10), a turntable system (11), a direct leakage baffle (14), an antenna to be tested (15) and a reference antenna (16). The phase center of the central feed source is located at the focus of the reflecting surface, the other eight feed sources are located near the focus, and the relative position of each feed source and the central feed source is determined according to the position of a dead zone, the deflection angle of the dead zone and the geometric dimension of the reflecting surface. When millimeter-wave antenna measurement is carried out, directional diagram testing canbe carried out on an antenna at multiple angles at the same time by rapidly switching the working states and polarization modes of different feed sources, and the testing efficiency of the millimeter-wave antenna is greatly improved.