Existing building information model quality control method and system

The invention provides an existing building information model quality management and control method and system, and the method comprises the steps: modeling process management and control: determining whether the modeling process of data collection and a BIM model is standardized or not based on the work content and quality requirements of drawing data collection, drawing data processing, field data collection and BIM model data production management and control; the quality inspection process management and control comprises the steps that an inspection unit makes an existing building BIM model inspection rule oriented to a smart city and a digital government, a modeling unit performs self-inspection, and the inspection unit performs sampling inspection; and the BIM model quality rating and evaluation module is used for performing BIM model quality rating and evaluation on the BIM model which passes the sampling inspection of the reviewing unit and feeding back a rating and evaluation result to a modeling un