Anti-jamming of GPS receiver is an important problem, navigation war, and this topic has been well researched recently. However, anti-jamming in the complex receiving environment has not been considered in the most of the researches. To solve this problem a cascade anti-jamming method is proposed in this paper. In this scheme, each channel of the received signal vector is processed by utilizing a method based on STFT, after the signal in each channel passed through the processor, a spatial processing has been employed to, suppress the reserved interferences.