Abstract: In order to meet the planting pattern of vegetables and fruits in some parts of China and solve the problem of labour intensity and low efficiency for constructing low tunnels traditionally, this paper designs a low tunnel machine. The low tunnel machine is mainly composed of a frame, a curved rod insertion device, a film coating device and a traveling device.Through the walking mechanism, the function of fixed distance inserting rod is completed, and the inserting device is bending and inserting rod, and the automatic laminating operation is completed by the laminating device. The automatic inserting and laminating operation of the low tunnel is realized, and the work efficiency and the stability of the low tunnel are improved.Field experiments show that when the traveling speed of the machine is 1-1.5 km/h, the rod insertion rate is 92%-96%, the average verticality of the low tunnel is 84°,the damage rate of the low tunnel is less than 1.5%,and the damage rate of the film is less than 4%.The machine can fulfill the technical requirements of the low tunnel.