Quantitative analysis of BIM CMM, certification of grade and each party involved in the project benefit is the important means to evaluate the project's BIM implementation depth. And it contributes to the project participants to sum up experience and deficiency, so as to improve the application level of BIM. This paper takes the BIM application of Tianjin Dongjiang Bonded Port large-scale integrated commercial body as an example to analyse the quantitative evaluation method of BIM CMM, certified grade and each party involved in the project benefit.