| The 20th Party Congress pointed out that we should strive to create a new situation of high-quality development in housing and urban-rural construction,and the URA mentioned in its work conference that it should highlight two main directions:improving quality and reducing costs[1].The cost management is one of the core tasks in engineering projects,and the situation of cost overruns due to ineffective cost management caused by the lack of information and low transmission efficiency occurs from time to time.The problems such as the lack of comprehensive and timely data acquisition,slow transfer calculation processing speed,and low dynamic management ability frequently appear,which poses a great challenge to the cost management level of EPC project general contracting units.This paper takes EPC project cost management as the research object,uses literature analysis method to analyze and summarize the current situation of EPC project cost management at home and abroad,and proposes to adopt BIM technology,3D printing technology and other construction information technology for its management.The specific research contents are:firstly,based on the previous research,we analyze and construct the influence factor system,namely,five primary indicators and 18 secondary indicators for design stage,procurement stage,construction stage,completion and acceptance stage and other factors,combine the data results of questionnaire survey,use structural equation model to analyze the internal relationship of the influence factor system,get its weight ranking,and clarify the key points to be paid attention to in each stage;secondly The role of construction information technology in cost management of EPC projects is studied in depth,mainly applying different characteristics of construction information technology for cost management of EPC projects,such as BIM technology,3D printing technology and VR printing technology can visually display the design plan in order to optimize it,so as to control the cost from the beginning of the project;IOT technology can implement the procurement plan and record the construction process according to the material and equipment information The IOT technology can implement the procurement plan and record the consumption of construction process based on the information of materials and equipment;the UAV tilt photography technology can monitor the construction site and construction progress in real time.Again,by using different construction information technologies in each stage of EPC projects to obtain cost information in real time to achieve integrated application,it makes the data comprehensive and accurate,which is meaningful for the cost management of EPC projects of general contractors.Finally,through example verification,the significant effect of construction information technology on EPC project cost management is fully proved. |