The invention discloses an efficient slicing device for Lentinus edodes processing. The slicing device comprises a slicer body, a box is fixedly connected to the top of the slicer body, a motor is fixedly connected to the left side on the front surface of the box, and the output end of the motor penetrates into an inner cavity of the box and is fixedly connected with a first rotary rod. By arranging the slicer body, the box, the motor, the first rotary rod, a first roller, a second rotary rod, a second roller, a conveying belt, drainage pipes, first water outlet pipes, a partition plate, firstair outlet pipes, water sprayers, air sprayers, a first connecting pipe, a second connecting pipe, a feeding bin, a water pump, an air exhaust pump, a shell, a water inlet pipe, a second water outletpipe, an air inlet pipe, a second air outlet pipe, a heater, air inlets and a discharging pipe to be cooperatively used, the problem that an existing efficient slicing device for Lentinus edodes processing has no dedusting functions is solved, the efficient slicing device for Lentinus edodes processing has the advantages of having the dedusting function, and the device is worthy of popularization.