The invention discloses a food processing device, which comprises a rack body, wherein a mixing bin and a sliding cavity located at the lower part of the mixing bin are arranged in the rack body; a ventilation opening which is equal in left and right and is expanded from front to back is arranged between the mixing bin and the sliding cavity; a filter net is arranged at the upper end part of the ventilation opening; a rotating stand is rotationally arranged between the top and the bottom of the mixing bin through a rotating bearing; an inner bin is arranged in the rotating stand; via holes communicated with the inner bin are formed in the upper end part and the lower end part of the rotating stand; a midpoint threaded connection shaft is fixedly arranged at the midpoint of the mixing bin and comprises an upper threaded connection shaft and a lower threaded connection shaft; the upper threaded connection shaft is fixedly connected with the lower threaded connection shaft; and the upper end of the upper threaded connection shaft penetrates into the corresponding via hole and is fixedly arranged at the top of an assembling groove and the lower end of the lower threaded connection shaft penetrates into the corresponding via hole and is fixedly arranged at the bottom of the mixing bin.