Abstract: In view of the complex spatial structure of mine roadway,this paper puts forward the technical route of threedimensional design modeling using Dynamo visual programming flow,studies the methods of roadway centerline extraction and roadway section parameter family construction,and realizes the rapid modeling when the roadway section changes. The visual program based on Boolean operation realizes the mutual connection of horizontal and inclined intersection roadway,at the same time,the dynamic modification of the model design can be realized by adjusting the parameters through visual programming in the modeling process,so as to improve the reusability of roadway three-dimensional model. Experiments show that:Dynamo visual workflow can accurately control the modeling process,complete the automatic construction of roadway three-dimensional model,and improve the speed of roadway modeling.