The invention discloses a small-package traditional Chinese medicine cabinet automatic medicine suction sliding type mechanism. The mechanism comprises a box body mechanism, a medicine obtaining mechanism and an inclined medicine discharging mechanism; the box body mechanism comprises a rectangular box body, a medicine pushing plate and a horizontal moving driving mechanism; the medicine obtainingmechanism comprises a stand column, a lifting driving mechanism, a lifting platform, a lifting guide mechanism, a vacuum adsorption mechanism and a sensor; the inclined medicine discharging mechanismcomprises a support, a sliding plate, a sliding plate driving mechanism, an inclined moving guide mechanism and the like. Medicine bags are taken from the rectangular box body through a vacuum suction nozzle of the medicine obtaining mechanism, the obtained medicine bags are put on the sliding plate of the inclined medicine discharging mechanism, and then the medicine bags slide downwards on thesliding plate by using gravity and is discharged out of the rectangular box body; during medicine obtaining, the sensor is arranged in the medicine obtaining mechanism to detect whether the vacuum suction nozzle obtains medicine successfully or not, the problem of medicine discharging failures is avoided, the medicine bags are accurately counted, and the accuracy of medicine dispensing is guaranteed. The mechanism can replace manual work for medicine dispensing, the traditional Chinese medicine dispensing cost is reduced, and the medicine dispensing efficiency is improved.