The invention provides a track establishing and correlation method based on Doppler information. The track establishing and correlation method based on Doppler information includes the steps: preferentially selecting two targets, and determining the matched corresponding relationship between the tracks and the detection targets; tracking filtering and performing memory extrapolation processing bytrace point target Doppler, and determining the effective flag bits of the tracks; if the tracks are in the length of continuously tracking filtering, determining the track memory enablement flags, and counting the track memory time; and if single frames of the tracks are lost, determining whether the track memory is extrapolated or the tracks stop resetting; forming a track Doppler comparison flag; only when two tracks are effective at the same time, performing target correlation processing, and if selecting the related tracks to switch, stopping track correlation processing and recovering correlation determination with the other track after time delay, and if the selected track terminates resetting or the Doppler frequency difference of the two tracks is less than the set Doppler threshold and the set time is satisfied continuously, stopping matched correlation processing of the detected target and the track. The track establishing and correlation method based on Doppler informationis low in the computational complexity, is easy to implement, and can improve accuracy and stability of tracking a radar target.