Abstract: The EPC project of Kuwait International Airport new terminal building is one of the key projects of "One Belt One Road". The project reveals difficulties and high requirements on top-down designing, BIM data management, EPC management and site coordination. The life-cycle of the project is based on international BIM standards, including design, procurement and construction.It is a huge challenge for the domestic engineering contractors. This paper introduces how the project team researched the international BIM standards, established a top-down designing system and an on-site coordination mechanism to achieve a good performance. On this basis, it further carried out comprehensive BIM technology innovation and application, and realized the improvement of its own technical and management capabilities. The BIM application results of this project was awarded the first prize in the 2020 National BIM Contest. The introduction could be a good example for other domestic engineering contractors aiming at international construction market, and a chance for merging domestic and international BIM standards and management strategies.