The invention discloses a high-efficiency plate-frame press filter. The high-efficiency plate-frame press filter comprises a plurality of filter groups formed by filter plates and filter cloth, wherein a special filter plate is inserted into the filter groups, the special filter plate is not provided with the filter cloth, when the water precipitation is ended, a filter plate water precipitation hole and a pulp inlet are used as an aeration passage, and compressed air regularly back-blows the filter cloth to form pulse aeration by virtue of the aeration passage to form pulse aeration; the liquid outlet is are provided with an overflow pipe higher than a highest point of the filter plate respectively, all liquid outlets are connected and converged to a falling pipe, the falling pipe is provided with a control valve, after the sludge discharging is ended, water enters from a main slurry inlet pipe, the falling pipe control valve is closed, the inlet water is stopped when water overflows in the overflow pipe, and the mud cake residues which are incompletely dropped is are soaked and softened; and when the mud needs to be discharged again, the falling pipe control valve is opened, and the filter plate is pressed. The high-efficiency plate-frame press filter is balanced in pressure, high in solid-liquid separation degree, good in filter cake forming effect, long in service life of the filter cloth, easy for separating the mud cake, convenient in transportation, pollution-free and capable of realizing self-maintenance function.