In order to eliminate the disadvantages of the residual deformation of the buckling-restrainedbrace after the severe earthquake,this paper contraposes a new type of brace components-self-centering buckling-restrained brace and a comparative analysis of the seismic performance ofself-centering buckling-restrained brace steel frame,buckling-restrained brace steel frame andsteel frame is done by using general finite element software ANSYS.The results show that top displacement,inter-storey drift angle,residual deformation etc.of self-centering buckling-restrainedbrace steel frame are much smaller than buckling-restrained brace steel frame and steel frame.Especially in the aspect of residual deformation,self-centering buckling-restrained braces eliminatesmain residual deformations of structure,showing expected re-centering effect.