Abstract:The region field and the local field separation is a region gravitational field data processing important aspect. At present, in the separated region field and the local field “the Winner filter”, is the Winner filter, in the signal with disturbs under the non-correlated condition an exceptional case, but the so-called separated region field and the local field “the matched filtering”, is the Winner filter in the signal and the disturbance with a phase condition under exceptional case. About the Kalman filtering in the applied geophysics domain's application, also is only restricted in at present the earthquake data processing. This article studied the Kalman filtering to reign in the field material data processing application. In the wave number domain proposed that carries on the position field separation with Kalman filtering method, finally indicated that the effect is good, the compatibility is strong, not useful information and disturbance information relevance and phase whether same influence.