The utility model provides a wire stretching cabinet which comprises a cabinet body. A cabinet door with a handle is arranged on the front face of the cabinet body. At least four layers of support frames are arranged in the cabinet body in parallel, first connecting shafts are arranged on the supporting frames and are perpendicular to the supporting frames, and wire coil frames are arranged in the first connecting shafts in a sleeving mode. Wire pressing devices are further connected to the supporting frames, and second wire outlet holes are formed in the part, close to the wire pressing devices, of the side face of the wire stretching cabinet. The wire coil frames comprise wire coil trays and wire coil shafts, the wire coil trays and the wire coil shafts are integrated, and wire pressing baffles connected with the wire coil shafts through bolts are arranged on the tops of the wire coil shafts. The wire pressing devices comprise wire pressing frames perpendicular to the supporting frames, first wire outlet holes are formed in the ends, close to the wire coil frames, of the wire pressing frames, at least five connecting holes are further formed in each wire pressing frame and distributed in an upper row and a lower row, second connecting shafts are inserted in the connecting holes and fixed through nuts, and rollers are further connected to the second connecting shafts. The wire stretching cabinet is simple in structure, easy and convenient to operate capable of stretching wires of various diameters and ideal in wire stretching effect.