Abstract: Conformal Perfectly Matched Layer（PML） can absorb electromagnetic wave well and satisfy geometrical shape requirement of complex scattering body.Through reducing gridding quantity in scattering section，conformal PML saves storage of computer.Based on hexahedra vector finite element in ANSYS，a new orthogonal-reinforced hexahedra vector element is created by modifying vector basis functions.Due to orthogonality of sampling nodes and orthogonality of integral simultaneously，the new vector element can strengthen diagonal elements’ predominance and quicken speed of solving system question group.Numerical examples show that the new element with conformal PML can not only reduce storage requirement，but also improve speed and precision of solution.Therefore it is applicable to solve 3-D electromagnetic scattering.