Domestic and foreign brand cruise have a clear corporate culture, style positioning, theme planning, style and their narrative representation. Through cluster analysis, cases study, comparative study and other methods, it is concluded that there are two aspects of cruise theme design representation: externalization into interior style and internalization into cultural concept, function planning and operation mode. Taking the typical foreign cruise atrium as the research object, the five tendencies of the theme of the international cruise atrium, such as culture, nature, art, nostalgia and times, are expounded from the positioning of the theme and the representation elements of its style. At the same time, the tendencies are deduced as regionalism, classicalism, eclecticism, naturalism, modernism, futuristic technology and other styles, which are mainly displayed in the spatial form, their interface and the interior elements.