This paper studies the mechanical principle and combined application of shear wall and swing wall in the seismic design of high-rise buildings.Shear wall is a longitudinal wall perpendicular to the plane of a building,which resists the shear force generated by an earthquake through shear resistance,flexural stiffness,and contribution stiffness.Swing wall is a kind of seismic wall that can produce large horizontal displacement.Its mechanical principle is to improve the seismic resistance through flexible design,energy absorption and stiffness control.Shear wall and sway wall have advantages res...