The invention discloses an ejection and resetting integrated device in the field of plastic product production equipment. The ejection and resetting integrated device comprises a first mounting shaftand a second mounting shaft. The second mounting shaft is connected to a threaded ring through external threads. One end, connected to the threaded ring, of the second mounting shaft is provided witha connection hole for connecting the first mounting shaft. The outer wall of the second mounting shaft is provided with a sliding slot communicated with the connecting hole. The surface of the first mounting shaft is provided with a clamping slot and the clamping slot is located at one end of the first mounting shaft connected to the second mounting shaft. A locking block for engaging the clampingslot is slidably connected to the interior of the sliding slot. The contact surface of the locking block and the first mounting shaft is a raised cambered surface. Through use of the first mounting shaft, the second mounting shaft, the threaded ring and the locking block and separation and locking action of the locking block and threaded ring on the first and second mounting shafts, the ejectionand resetting of the module are realized and the overall structure of the injection molding machine is simplified.