Although multi-station radar cooperation can effectively improve the anti-jamming ability by using multi-view detection and information fusion processing， it is difficult to meet the detection conditions in the actual scene， or it suffers from the risk of network destruction in practice. Therefore， it is still necessary to improve the anti-jamming ability of single station radar. Aiming at problems of single-station radar， such as single detection angle， limited echo information and insufficient anti-jamming ability， a distributed detection condition is constructed by adding a reconfigurable intelligence surface （RIS） in the echo receiving process of single-station radar to receive the multi-directional scattering signal of the target， thus opening up a new way for the single-station radar to resist deceptive jamming. Simulation results show that adding RIS can effectively construct virtual channel and improve the anti-jamming ability of single station radar.