Abstract: The new structure of the transplanter with chute was described. The basic requirements of the seedling aid springs performance were put forward. The fundamental structure and working principle of the device with seedling aid springs were analysed. The designing method was summed up. The test results show that the transplanter with seedling aid springs is always able to guarantee the stability of planted seedlings and the wonderful performance of planting, to increase the adaptability to random fluctuation of soil and seedlings, and to make the rate of good and excellent planted seedlings 100％ and 87.3 ％ respectively(verticality over 30° and 70°). Thus, this machine can reduce the dependence of planting quality on the adjustment of working parts, and provide the convenience for the transplanter users.