The invention relates to an efficient upper-feeding box-type filter plate and a processing method thereof. The efficient upper-feeding box-type filter plate comprises a filter plate body, wherein a feeding hole is formed in the upper middle of the filter plate body; a feeding channel, which is connected with the feeding hole and a filter chamber, is formed in each of the front and rear surfaces of the filter plate body; a plurality of protruded base tables are uniformly distributed in the filter chamber and are distributed at intervals to form base table filter liquid channels; a plurality of small protruded filter points are uniformly distributed on each base table and are distributed at intervals to form filter point filter liquid channels. According to the efficient upper-feeding box-type filter plate, filter liquid smoothly flows, the filter area is large, and the filter effect is effectively improved; moreover, the efficient upper-feeding box-type filter plate is processed through an entire one-step molding processing and hole-drilling method, so that a great amount of processing time and a great amount of labor cost are saved.