In order to realize the intelligent monitoring of the incremental launching construction of a precast frame bridge, this paper took the incremental launching construction of the frame bridge in Shanjuan road under Changde-Zhangjiajie expressway in Changde of Hunan Province as the engineering background and established an intelligent monitoring system for the incremental launching construction of the precast frame bridge based on BeiDou positioning technology. In addition, the paper monitored the displacement of the precast frame bridge and the settlement of the existing pavement during the incremental launching construction and analyzed the monitoring data. The research shows that the intelligent monitoring system for the incremental launching construction of the precast frame bridge based on BeiDou positioning technology realizes the real-time monitoring of data, and the system can perform automatic analysis and processing through programs. In addition, its analysis and feedback speeds are greatly improved, and the efficiency is high.