Pulse Doppler fuze has the ability of distance and velocity measurement,which make it have strong anti-jamming capability.In order to improve the jamming effect to the pulse Doppler fuze,a multiple velocity false targets jamming method based on Doppler modulation was designed based on analysis to its working principle.The working principle of multiple velocity targets generating was proposed,then the output of pulse Doppler fuze under the jamming of multiple velocity false targets was derived.Simulations were made to analyze the jamming effect of multiple velocity false targets.Theoretical analysis and simulation results demonstrate that this jamming signal can produce multiple false targets with different velocities and the jamming parameters can be altered flexibly according to the requirement.It is proved that this method can jam the pulse Doppler fuze efficiently.