For the exist problem of extruding the mesh plate directly by forming tool head, the CNC incremental forming mesh plate based on pad plate was proposed. Then, the mesh plate was indirectly extruded by forming tool head through placing a padplate on mesh plate, and the scratches or rupture of mesh plate was avoided by eliminating the friction between forming tool head and mesh plate. In addition, aiming at the problem that the contour trajectory with constant layer distance was not suitable for the formation of flat area for mesh plate, the method of contour trajectory based on backprojection was proposed. Furthermore, the contour lines were inserted in a flat area by backprojection, where the contour trajectories were densely so that the area could be extrude evenly. The forming experimental results show that the CNC incremental forming method of mesh plate with pad plate based on backprojection can improve forming quality of mesh plate.