This Paper is prepared to provide the state of the art of the seismic behavior as well as seismic design of steel shear walls. This Paper contains a summary of the behavior of steel shear walls under cyclic load as well as during post earthquakes. Later, one and four stories panel with and without stiffeners is studied. For this purpose, various models of such walls are analyzed and modeled. The Result shows that ductility of the system at Nonlinear Zone is increasing and the steel plate -against the steel frame- has nonlinear behavior. Also, lateral drift at the steel shear wall with stiffener is decreasing but lateral drift of the four stories panel at middle beams level is increasing at compared with the non stiffener wall.