Nowadays spoofing is the dominant threaten for GNSS receiver due to its low cost and high efficiency. However, the nulling antenna, which is widely used in GNSS receiver, can only mitigate the interference with high power. According to the DOA information of spoofing, some pseudo interferences are added to the received signal and make sure they imping on the antenna array from the same DOAs as those spoofing. Then the following traditional nulling antenna could suppress the spoofing since the beam pattern generate nulls at the DOAs of spoofing. Finally, the simulations of beam pattern and PN code synchronization illustrate the novel performance of proposed methodology.