The meshing method is applied to the placement track planning of S-shaped inlet model. Namely, CAD software model of inlet is meshed by using UG meshing generator and the meshing data is created. Based on these data, the topology relation between meshing element and nodes is set up. The normal vector of placement track and track points are calculated in each meshing element. The simulation test shows that this method has some performances such as high speed program performing, the smooth curve of placement track, no mutation of track and so on. So this method has certain application value in engineering. It is put forward to develop a meshing tool for the track generation by using the secondary development function of UG.