The invention relates to a non-welded combined steel plate shear wall applied to a fabricated steel structure system and belongs to the technical field of structure engineering. The non-welded combined steel plate shear wall is composed of steel plate unit pieces with rolled edges and in-fill concrete. The steel plate unit pieces with the rolled edges comprise flat steel plate parts and rolled edges parts. According to the non-welded combined steel plate shear wall, after the unit pieces are combined, the end rolled edges are rolled mechanically to be a whole, and then the whole is filled with the concrete and includes a rectangular area lattice type, a trapezoidal area lattice type and a triangular area lattice type. A steel plate shear wall formwork system is composed of the rolled edge steel plate unit pieces, welding does not exist, construction is convenient, and the residual stress influence is little; a truss system is formed through the tension effect among the unit pieces, and integrity is good; and according to the structure type and the construction requirement, fabricating can be conducted arbitrarily to form various construction forms.