Under the context of culture-tourism integration, prefabricated construction products have emerged as a new construction model. The work aims to propose a three-dimensional design framework of "cultural gene translation - intelligent module generation - dynamic scene adaptation" by analyzing the application advantages of prefabricated products in terms of efficiency, environmental friendliness, and flexibility, to explore the integration path of design intelligence in prefabricated products for culture and tourism. Based on parametric design, digital twin, and Internet of Things technology, combined with typical cases such as component-based installation for pop-up cultural and creative markets in culture and tourism scenes, and prefabricated cycling stations, the digital deconstruction of cultural symbols, AI-driven module generation, and dynamic scene optimization strategies was analyzed, ultimately forming a "culture-technology- ecology" collaborative paradigm. The research on prefabricated construction products transforms the achievements of cultural inheritance into competitive cultural tourism products, providing the cultural tourism industry with reproducible, low-cost, and efficient innovative solutions.