Throwing transplantation test bed was designed based on pneumatic and ordered principle. Experiments on pneumatic area, high-speed photography of pot seedling movement and working optimization were carried out. Test results indicated that pot seedling was blew out by air jet of supersound speed, and fell into the field in ordered pose, demonstrated the feasibility of pneumatic ordered throwing transplantation technology, revealed the mechanism of the technology, obtained some work parameters as pressure of air jet, nozzle diameter and pot soil and so on, optimized some relative parts, provided basis for designing and improving of the paddy pneumatic ordered throwing transplantation equipments.