A three-roller vertical type cross wedge rolling mill comprises a frame, and an upper roller and a lower roller respectively arranged on the frame through an upper roller bearing seat and a lower roller bearing seat, wherein a middle roller is arranged between the upper roller and the lower roller; the middle roller is arranged on the frame through a bearing seat fixed on the frame; the three-roller vertical type cross wedge rolling mill also comprises a power transmission system used for driving the upper roller, the lower roller and the middle roller for same-direction same-speed rotation. Compared with a two-roller vertical type cross wedge rolling mill, the three-roller vertical type cross wedge rolling mill can obviously improve production efficiency, and is strong in versatility with the two-roller vertical type cross wedge rolling mill, so a company can conveniently upgrade and reconstruct the two-roller vertical type cross wedge rolling mill, thus reducing investment.