The method includes following steps: signal data extraction, sliding correlation and phase deviation estimating calculation, multi-frame merging, envelope of time delay generating, route selecting, phase deviation estimation merging, frequency deviation estimating calculation, and frequency coarse adjustment of local oscillator so as to accomplish one time of procedure for adjusting frequency coarsely. Under condition of low SNR, and mobile communication environment of frequency and time scattering, the disclosed frequency correction device adopted in the receiver can realize frequency synchronism in time-division system rapidly and precisely.