Abstract: The optimization design of scene roaming route is the key to get fluency of 3D scenes.First，according to the OpenGL camera control principle，the path data formats are defined，including the waypoint coordinates and other basic attributes.Then，based on 3D model of coal mine，some wags that waypoint interactive pickup，manual roaming and roadway centerline conversion method are proposed to get route，and optimize the route through the path splicing，path fitting and collision detection method.Finally，roaming control is realized in manual and automatic ways.The experimental results show that this method simplifies the path creation steps and achieves good roaming results.