Abstract: The article aims to explore the Hakka origins and the regional heritage evolution of the spatial genes in Luodai Ancient Town in Longquanyi District, Chengdu City, Sichuan Province by conducting a comparative study with the traditional Hakka villages in the northern Guangdong region. Luodai Ancient Town, as a significant settlement for the Hakka people who migrated to Sichuan, exhibits spatial characteristics deeply influenced by traditional Hakka villages in northern Guangdong, such as Heyuan and Meizhou. Through comparative analysis, the paper reveals the similarities and differences in the spatial genes between Luodai Ancient Town and the traditional Hakka villages of northern Guangdong. It also examines the impacts of natural environment, socio-economic changes, cultural exchanges and ideological factors on the local evolution of spatial genes in Luodai Ancient Town. The research not only deepens the understanding of Hakka cultural heritage and its development but also provides insights for the protection of cultural heritage and the sustainable development of historical towns.