The invention discloses a food and medicine drying device, and relates to the technical field of foods and medicines. The drying device comprises a drying box, wherein a mesh plate is arranged in thedrying box; the lower surface of the mesh plate is overlapped with top ends of four cams; and the four cams are respectively clamped outside two rotating shafts. According to the drying device, through mutual cooperation of a first switch, a second motor, a half gear, a toothed plate, a sliding block, a pulley, a hot air fan, a second spring, a second switch, a first motor, the rotating shafts, the cams and the mesh plate, the defect that the hot air fan can only dry the surface of the food or the medicines, so that the underneath stacked foods and medicines are completely dried under the vertical movement of the mesh plate; and moreover, the wet or large size foods and medicines can be crushed through the horizontal movement of the pulley, so that the large size foods or medicines are completely dried as well, and the practicability of the device is improved.