The vehicle used by the snow rescue vehicle to drive in the snow moves through the rotation of the track. The shock absorber on the sled effectively avoids the bumps during driving. If there is no such vehicle, even if there are small bumps on the road, the impact will be on the user. It is very big, not only the driving feels uncomfortable, but also causes operational errors and endangers personal safety. No specific road is required when driving. Snowmobiles generally have only one or two occupants, and are often used for surveillance and rescue purposes in ski resorts.