Abstract: BIM technology plays an important role in the digital transformation and development of the construction industry. In order to better guide BIM application in construction projects, increase stakeholder engagement, and ensure that BIM technology effectively serves engineering construction, this study employs Nvivo software and adopts a grounded theory method. Using 45 national, provincial and municipal BIM application guidance documents and related policy documents as data sources, the study constructs an evaluation system for BIM application in construction projects from a theoretical perspective through open coding, axial coding, selective coding and theoretical saturation testing. The evaluation system systematically evaluates the BIM application in construction projects across three dimensions: BIM application technology foundation, application mechanism, and application depth. Incorporating 14 secondary indicators, the system enables project participants to evaluate their BIM application capabilities during project implementation, thereby facilitating continuous improvement of BIM application levels and promoting the digital transformation of China’s construction industry.

Key words: ｃｏｎｓｔｒｕｃｔｉｏｎｐｒｏｊｅｃｔｓ, ＢＩＭａｐｐｌｉｃａｔｉｏｎ, ｇｒｏｕｎｄｅｄｔｈｅｏｒｙ, ｅｖａｌｕａｔｉｏｎｓｙｓｔｅｍ, ｐｏｌｉｃｙｄｏｃｕｍｅｎｔ