Adaptive nulling anti-jamming technology can greatly improve the anti-jamming ability of satellite navigation receiver. It is widely used in precision guided weapons. It is the focus of current research on satellite navigation counter-measure. This paper simulates the anti-jamming performance of multi-element adaptive nulling receiver in the face of jamming sources with different numbers， different incident azimuth angles and different incident pitch angles， quantitatively analyzes the improvement of the anti-jamming ability of the receiver， and puts forward targeted counter-measure schemes. Based on the experimental results and data， it is found that by adjusting the number of interference sources and the setting angle， the anti-jamming ability of the receiver can be effectively suppressed， so as to achieve a reasonable allocation of jamming resources. The conclusion has a strong practical guiding significance for the further study of the optimization strategy of jamming source deployment.