The invention discloses an automatic selling system for a trolley case, and the structure of the system comprises a casing, an inclined plate, an outlet and placing cavities, wherein the casing is internally provided with a plurality of partitions to divide the inner cavity of the casing into a plurality of placing cavities, the openings of the placing cavities are connected to the inclined plate,and the inclined plate communicates with the outlet. The automatic selling system for the trolley case provided by the invention has the beneficial effects that casters of the trolley case push the rollers to roll when in contact with the rollers by setting arc-shaped inner inclined layers on the edge layers such that the casters of the trolley case rotate and fall between the two edge layers torealize that the rolling direction of the casters of the trolley case is the same as the exit direction of the partitions; the external mechanical force is used to push the slider to slide to the right to enable downward movement of one end on the movable plate at which the engaging block is located according to the principle of the lever such that the raised block is separated from the casters ofthe trolley case, and the trolley case slides out through the inclined plate under the push of the push-out plate, thereby ensuring that the one-time thrust can push the trolley case out from the placing cavities, and facilitating the customer to extract.