This invention provides a method for constructing relationships in a land spatial
information model (TIM), relating to the field of
data processing. Specifically, it includes the following steps: generating a three-segment structured code for geographic entities; constructing a "topological
potential field emergence engine for
geographic entity relationships" based on the generated three-segment structured code, automatically deriving multi-dimensional relationships between geographic entities, and outputting a standardized and evolvable
geographic entity relationship map; and achieving integrated coding fusion and application across provinces, cities, and counties based on a hierarchical mapping
knowledge base and a resource code fusion model, supporting smooth migration of existing data and end-to-end
business collaboration. The technical solution of this invention overcomes the problem in existing technologies where the association logic between various domains and TIM
geographic entity relationships is not yet clear, making it difficult to support the integration of multi-dimensional geographic entity relationships based on time, attributes, and business.