The traversal search of multi-dimensional parameter during the process of hypersonic target echo signal coherent in-tegration, leads to the problem of large amounts of calculation and poor real-time performance. In view of these problems, a mo-dified polynomial Radon-polynomial Fourier transform (MPRPFT) hypersonic target coherent integration detection algorithm based on Doppler feedback is proposed in this paper. Firstly, the Doppler estimation value of the target is obtained by using the target point information obtained by subsequent non-coherent integration de-tection. Then, the feedback adjustment of the coherent integration process is performed by using the acquired target Doppler esti-mation value. Finally, the coherent integration is completed after adjusting the search interval of compensation. The simulation results show that the algorithm can effectively reduce the com-putational complexity and improve the real-time performance on the basis of the effective coherent integration of hypersonic target echo signals.