Abstract: Minimum Shift Keying Signal which is often used in communication and its properties are introduced,and an application of MSK signal to radar signal processing is presented in this paper.Through theoretical analysis,several main characteristics of this kind of signal are discussed,such as the spectrum,pulse compression,anti-jamming etc.And compared with 2PSK and m-sequence signal which are widely used in radar signal processing,the simulation result shows the perfect properties of anti-jamming of MSK signal to radar signal procession.