An automatic frequency calibration method for a time-division wireless communication system receiver includes the following steps: primary Local area search, rough frequency calibration, primary local area search and fine frequency calibration, among which, the rough frequency calibration includes signal pick up, sliding and phase offset estimation, multi-frame merge, time delay envelope generation, path selection, multi-path merge and frequency control. The fine frequency calibration includes signal pick up, channel estimation and path search, path merge, frequency offset estimation, SINR estimation, kalman gain factor computation, one-step loop filter and frequency control, which can realize frequency synchronization quickly and accurately under low SINR or poor diffusion of time and frequency.