Most research for anti-chaff using polarimetric information at home and abroad are considered without the influence of incident polarization both on scattering amplitude and scattering polarization. So a group of polarimetric scattering statistical data in given incident conditions is acquired and processed based on polarimetric coordinate warped, and preferential statistic curves of chaff cloud aiming at incident wave polarization form are also achieved through building a instantaneous polarized scattering mode of noncoherent chaff cloud in radar sight direction. Numerical simulation results show that the processed polarization states almost totally distribute on horizontal polarimetric area and chaff cloud has statistic preferential characteristics when incident polarization is at a minor angle of pitch of radar. Conclusions can be regarded as primary optimizing projects for anti-chaff using polarimetric information and provide the theoretical base for the polarization filtering.