Abstract: GPS signal acquisition is the key technology of high dynamic GPS receiver.For the high dynamic property, the signal has great Doppler effect, which makes the acquisition difficult.Under the circumstances, sliding correlation method makes too much time consumption, and it's unbearable;as to the traditional matched-filter, it's too much hardware cost.In this paper, we provide a new acquisition method, which is combining the modified fold-matched-filter with coherent integration and no-coherent integration.Some details in FPGA application were also introduced.