The research applies the BIM technology to realize the engineering cost management, which establishes our technical scheme to realize the quantity calculation based on BIM technology in commercial lines. By comparing the current construction cost budgeting software and the connection deduction relationship of BIM components, the accuracy of BIM engineering measurement is verified. According to the engineering quantity list pricing rules, the BIM modeling standard based on engineering calculations and the interchange standard of the engineering quantity data of BIM components are summarized.