Abstract: Based on the development of Internet technology, my country's construction project management has reached a new level of development. Using the concept of big data, build a construction project quality supervision platform, comprehensively monitor the construction of the project, and improve the overall construction quality of the project. Using the information monitoring platform to understand the project construction process and dynamically monitor the construction project is conducive to the efficient operation of the project management. Big data has certain advantages in many aspects, and has been widely used in project management in recent years. Based on this, this paper analyzes the new application model of big data in the quality supervision and management of construction projects