BIM model display method and system

The invention provides a BIM model display method and system, and relates to the technical field of BIM models. In the invention, under the condition that a plurality of three-dimensional building models exist, the plurality of three-dimensional building models are subjected to deduplication screening to form a data model set corresponding to the plurality of three-dimensional building models, and the three-dimensional building models included in the data model set are subjected to association identification processing. And establishing a model association relationship between every two three-dimensional building models meeting a preset condition. And under the condition that building model display request information is received, extracting a target three-dimensional building model matched with the building model display request information from the data model set. And performing display processing on the target three-dimensional building model and the associated three-dimensional building model having the m