The invention discloses an indoor moving object behavior modeling method supporting complex semantic query. The method comprises the following steps: partitioning an indoor region of a building into a plurality of space units, and constructing an indoor space unit adjacency distance matrix and a spatial index structure according to an adjacency relation among the space units; setting multilayer semantic keywords with different granularity degrees for room units and open units, and building a multi-granularity semantic hierarchy tree according to a semantic relation among the semantic keywords; building semantic indexes on semantic hierarchies with different granularity degrees for the room units and the open units; modeling behaviors of moving objects in the building. By adopting the indoor moving object behavior modeling method, a user can inquire relevant behaviors of the moving objects conveniently and rapidly, and moving objects having similar behaviors are classified effectively; the method has higher inquiry and update performance, and is more suitable for an actual indoor application scene.