With the arrival of the Internet plus era, we developed a web-based online construction drawings reviewing and managing system, to meet the digitization transformation requirements of construction drawing reviewing work from traditional paper document mode all over the country.This paper introduces the business process of the construction drawing review, the function design and implementation of the system, the key technologies, and etc.The system realizes the systematization and standardization of the reviewing process, which scientifically manages the drawings and improves the management level and the service efficiency and quality of the drawing review process.