The invention relates to the technical field of building model processing, and discloses a building information model-based data processing method, which comprises the following steps: S1, acquiring information, namely acquiring information of a building information model, and classifying and sorting the acquired data of the building information model by a worker; S2, input and comparison: enabling the worker to input the collected data of the building information model into the receiving device, and comparing the data of the building information model input by the input device with the data of the building information model stored in the database; s3, information association. According to the invention, analysis can be carried out according to the comparison result, whether missing data is caused by screening or omission during transmission is judged, the accuracy and preciseness of information input are improved, the data complexity can be reduced through data simplification, the number of data points is reduced, meanwhile, connotation characteristics in the data are reserved, and therefore, the resource overhead during query and processing is reduced, and the query response performance is improved.