In order to ensure that the safety files of large amusement equipment in the unit are complete and intact, the user unit should establish a management system for the safety files of large amusement equipment. It is clear that the safety files of large amusement equipment include at least the account of large amusement equipment, the account of operators of large amusement equipment, and the safety technical files of large amusement equipment, and the retention period of various file records should also be specified. When the user unit is changed, the files should be handed over randomly.