Abstract: In order to meet the urgent needs of digital transformation and safe production of industrial robots, by summarizing the current situation of intelligent monitoring of industrial robots, taking UR10 robot as the research object, starting from the aspects of twin modeling, multi-source data fusion, data visualization, etc., digital twin virtual mapping method is introduced, virtual and real interaction layer is built, and 3D visual monitoring digital twin framework is constructed. Combined with robot kinematics, a robot mathematical model was built, and a 3D visual monitoring system for industrial robots was developed through the Unity3D platform based on the digital twin five-dimensional model. The robot visual monitoring system is analyzed by reliability analysis. Finally, the feasibility of the system is verified by experiments, which provides a theoretical basis for the development of digital twin monitoring system for industrial robots.