Process cost management and control system based on BIM technology

The invention provides a process cost management and control system based on a BIM technology, and the system comprises a BIM modeling platform module which creates an engineering BIM model and generates real-time model data, and a digital-analog separation module which provides a data transmission function among other modules of the system and obtains and displays an engineering real-time cost report. The quantity-price linkage system module collects engineering information, uploads the engineering information to the cost database module, obtains real-time model data and an index open item list, calculates real-time engineering quantity and generates a real-time engineering quantity report according to the real-time model data and the index open item list, and the cost database module generates the index open item list according to the engineering information. And calculating the real-time cost of each column and the real-time cost of the project in the real-time project amount report, comparing the real-tim