Abstract: Due to the complexity of the simulation object of the robot welding station and the difficulty of establishing an accurate simulation model using traditional simulation methods, this paper proposes a visualization simulation system for the robot welding station based on the EM-Engineer simulation platform. Key technologies such as simulation modeling, welding process planning, and robot motion trajectory planning are studied. Finally, the system is used to realize the visualization simulation of the robot station on a certain vehicle assembly line. The visualization simulation realizes the content planning and production process simulation of the station, and an optimization scheme is obtained based on the simulation results. Keywords: Robot welding station; Visualization simulation system; Welding path planning; Welding gun pose simulation technology has become an important tool for analyzing and studying various complex systems. However, the robot welding station object is complex, and its simulation is a typical discrete event system simulation. The simulation model is relatively complex, unlike common scheduling simulation models. In addition to scheduling strategies, it also includes descriptions of welding processes, station layout, and robot motion interference, such as welding point task allocation, welding path planning, welding gun welding point pose, robot placement planning, robot trajectory planning, and production cycle time. Traditional simulation optimization mainly emphasizes algorithm selection and mathematical model establishment, requiring significant simplification of the simulation object and making it difficult to represent the complex realities of robotic welding stations. Therefore, this paper proposes a visualization simulation system that integrates modeling, planning, and simulation technologies, using CAD software and eM-Engineer simulation software as platforms, to simulate the operation of robotic welding stations. By simulating the actual welding motion of the robot, tasks such as welding path planning, robot trajectory planning, collision detection, production cycle control, and offline programming are completed, greatly improving the design efficiency of body-in-white welding lines. For details, please click: Visual Simulation Research on Robotic Welding Stations