The utility model discloses a cross-shaped thick steel plate shear wall. A wall plate is T-shaped; a steel plate shear wall is perpendicular to the wall plate; transverse wall plate reinforcing ribs are vertically assembled and welded on the inner sides of the wall plate and the steel plate shear wall; longitudinal wall plate reinforcing ribs are perpendicular to the plane of the steel plate shear wall and are assembled and welded on the inner side of the steel plate shear wall; an embedded column is H-shaped and is composed of two T-shaped sections; a hidden beam bracket is H-shaped and is assembled and welded at the end part of the steel plate shear wall. According to the cross-shaped thick steel plate shear wall, the structure with the simplest form is achieved under the condition that a design modeling requirement can be met, and the sectional dimension design is met; the bearing capacity of the steel plate shear wall is guaranteed, and meanwhile, the anti-seismic property and the ductility of the structure are improved to the greatest extent.