In order to strengthen the scientific level of safety management in the field of pressure vessel industry,realize the visual management more intuitively,accurately,efficiently,and conveniently of each device,the paper explored application trends of the Digital Twin technology in smart management of pressure vessels,combining the research progress and status of application of the Digital Twin technology.Also,it analyzed the general Digital Twin model for the safety management of the whole life cycle of car tanker,providing a feasible reference for the implementation of Digital Twin in the field of pressure vessel industry.