Abstract: The continuous growth of global demand for clean energy drives the rapid development of the international market of Liquefied Natural Gas carriers（LNG carriers）. At present, LNG carriers have become an important starting point for China's shipbuilding industry entering the international market. The development of key technical standards and the building of a perfect standard system are important prerequisites for realizing the whole autonomous and controllable process of China's LNG carrier design and construction. In view of the types, components and the processes of design and construction of LNG carriers' cargo containment systems, research is carried out on standardization of the cargo containment systems in LNG carriers, by preliminarily building a standard system for the cargo containment systems, and developing two standards for the cargo containment systems component modeling and process equipment modeling relying on the requirements of digital technology, which provides an effective standardized research basis for the development and application of key technologies in the design and construction of LNG carrier cargo containment systems in China.