This paper integrates the multidimensional data calculation model in the landscape planning and design of traditional villages, and selects among them cluster analysis, spatial morphology distribution characterization, spatial gene genetic characterization and other methods to extract the spatial genes of traditional villages. Landscape planning and design is based on the protection and inheritance of traditional village spatial genes. Taking Jiangsu Province as an example, the layout differentiation of the spatial genealogy of its traditional villages is explored. The spatial gene protection effect of traditional village A is evaluated and analyzed. The layout of traditional villages in Jiangsu Province is generally characterized by more in the south and less in the north, and denser in the south and sparser in the north, with the proportion of traditional villages in the southern, central and northern regions of Jiangsu decreasing in order, respectively 51.69%, 29.44% and 18.88%. Traditional villages A in Jiangsu Province obtain an overall score of 0.86 in landscape planning based on spatial gene protection and inheritance, achieving better results.