As an important symbol of technological progress and a specific consumption space for daily life, cruise ships are an important medium for national power competition and traditional culture dissemination. The article innovatively proposes a model of cruise ship interior design based on field theory, which relies on the transformation and expression of modernity of traditional culture to promote the diversified development of interior design. The mathematical model of cruise ship interior design is established by rasterizing cruise ship interior design through the raster method and introducing the discount factor. The genetic algorithm and simulated annealing algorithm are combined to construct the GSA algorithm, which is used to solve the cruise ship interior design layout optimization model. The coefficient of variation method and the fuzzy comprehensive evaluation model are introduced to realize the comfort evaluation model for the integration of traditional culture expression in cruise ship interior design, which provides data support for the diversity of traditional culture expression in cruise ship interior design. When the scale of the cruise ship interior design layout scheme gradually increases, the fluctuation range of the GSA algorithm is within [0.81%,2.47%]. The width of the accessible pathway of the double bed in the accessible cabin on the side of the porthole in the layout optimization scheme actually takes the value of 1020mm, which meets the calibration requirement of the minimum limit (900mm). The weight of culture in cruise ship interior design can be up to 0.2648, and the comprehensive evaluation score of comfort is 7.581, with an evaluation grade of average. To carry out the diverse expression of traditional culture in cruise ship interior design, it is necessary to fully extract Chinese style elements and combine with green decorative materials to enhance the culturality of cruise ship interior design.
