The invention discloses an adjustable traditional Chinese medicine slicing device. The adjustable traditional Chinese medicine slicing device comprises a bottom plate, a traditional Chinese medicine containing body, a cover body, a slicing worktable, an electric push rod, a collection frame, a motor, a disc, a swing rod, a mounting plate, blades and a picking plate; the motor, the disc, the swingrod, the mounting plate, the blade and the picking plate are arranged, the motor drives the disc to rotate, the disc drives the swing rod to swing left and right through cooperation of a cylindrical pin and a through groove, the swing rod drives the blades on the two sides to swing left and right through the mounting plate, in the left and right swing process of the blades, a large amount of traditional Chinese medicines are sliced constantly, slicing is rapid and high in efficiency, labor amount of workers is reduced, work efficiency is improved, the picking plate can pick sliced traditionalChinese medicine slices into the collection frame from the slicing worktable, collection is finished, the device is convenient and rapid, the electric push rod is arranged, a telescopic rod of the electric push rod is controlled to stretch out or draw back, the distance between the slicing worktable and the blades can be adjusted, and the aim of adjusting the slicing thickness is achieved.