The invention belongs to the technical field of filter presses, and particularly relates to a metal frame filter press filter plate. The metal frame filter press filter plate comprises a filter plateouter frame, a filter plate main body and filtrate discharge structures, wherein the filter plate main body adopts a screen mesh, the central area of the filter plate main body is provided with a feedhole, and the feed hole is welded to a feed ring; the filter plate outer frame is fixed to the periphery of the filter plate main body and consists of four frames; the thickness of the filter plate outer frame is 30-50 mm and is 5-10 times of the thickness of the filter plate main body; at least the left frame, the right frame and the lower frame are each provided with a flow passage cavity and the flow passage cavities communicate with one another; a plurality of liquid guide channels which communicate with the corresponding flow passage cavities are formed in the inner sides of the left frame, the right frame and the lower frame; liquid discharge holes are formed in the outer side of the lower frame; and each liquid discharge hole is connected with a corresponding liquid discharge pipeto jointly form the filtrate discharge structure. After the metal frame filter press filter plate is applied to the filter press of the same type instead of a traditional solid filter plate, the liquid discharge speed is higher, the liquid discharge efficiency is higher, the flow passage area is larger, the formed sludge quantity is larger, and the advantages are obvious.