AjammingsuppressionmethodbasedonpolarizationsignaldetectionisproposedundercommonrangeandvelocitycheatingjammingforpulseDopplerradar.Onthebasisoftheseparationofthetargetandthejamming,therangeandvelocitytrackonthetruetargetarerealized.FirstlythesignalprocessingmodelofthefullpolarizationpulseDopplerradarisintroduced.Secondlythemethodofcorrecttargetseparationisdiscussed,whichisthetwicedetectionsofenergyandpolarizationstateonthetwodimensionresolutioncellsofrangeandvelocityoftheradarecho.Finallythesimulationsareperformedandtheresultsprovethevalidity.What'smore,multiplerangeandvelocitycheatingjammingcanbesuppressedatthesametimeifthetargetandthejammingaredifferentinthepolarizationdomain.