Considering that the global navigation satellite system signal is buried in the strong interference and thermal noise, a novel anti-jamming scheme which utilizes subspace projection and beamforming method was proposed. The data vector received by antenna array was projected onto the noise subspace which is orthogonal to interference subspace to achieve interference suppression. When the local code was synchronized with the reference antenna jammer-free data, beamforming was performed according to the minimum mean square error criterion. Simulation results show that the proposed method can steer the main beam to the direction of global navigation satellite system signal wave with effective interference suppression, and the output signal-to-noise ratio can be significantly increased while the correlation peak curve and the carrier tracking performance are not corrupted.