The invention discloses a proofreading-oriented capping device for producing a new energy battery module, include a first support arm, moving sleeve, connecting sleeve, a first guide cap and a secondguide cap, a second support arm is mounted on the right side of the first support arm, The connecting sleeve is fixedly welded to the inner wall of the side baffle plate, and a connecting rod is arranged on the right side of the inner end of the connecting sleeve, the first guide cap and the second guide cap are fixedly bonded to the ends of the fixing plate, a second guide cap is arranged on theright side of the first guide cap, and the inner wall of the second guide cap is fixedly bonded to the guide bar. In a proofreading-oriented cover device for producing the new energy battery module, During the process of fixing the cover between the battery module and the cover plate, the central axis between the battery module and the cover plate is in the same position, so that the battery module cover plate can be first calibrated, and the hydraulic cylinder can provide mechanical power for the lifting and lowering of the cover plate, which is beneficial to reducing the labor intensity of the laborer.