The utility model discloses a broadband individual layer polarization beam splitting reflecting array antenna based on overlap reflector element, including feedhorn and reflecting array. The reflector element of reflecting array is stacked by two sets of parallel monopole quadratures to be formed, is used for compensating polarization of X directional line and Y orientation linearly polarized wave's reflection phase place respectively, and this design had both showed broadband operating characteristic, has realized the independent regulation and control to two kinds of polarization reflection beam again, plays beam polarized segregation's effect.