Abstract: The reconstruction and extension project of Velana International Airport in Maldives is contracted by Beijing Urban Construction Group, possessing many characteristic of tight construction period, high quality requirements, non-stop of existing airports, risks in settlement of reclamation engineering, and difficulty in communication with foreign co-workers.To ensure the completion of the project on schedule, the contractor applies the new BIM-based digital construction technology in Maldives Airport renovation and expansion project, which is provided by Beijing MAG Science & Technology Co., Ltd. Through the BIM modeling and adopting the BIM model to guide the construction process, the quality control during the construction period is completed by digital construction technology.Compared with the traditional construction method, the staff is reduced by 41%~73%, the work efficiency is increased by 20%~50%, and the construction period is shortened by 20%~50%.The project management level is indeed improved, truly achieving the goal of "staff reduction and efficiency increase, scientific and technological innovation".The application of BIM-based digital construction technology in airport project in Maldives introduced in this paper will provide reference for similar projects in the future.