Pneumatic technology. which is applied widely in industry more and more, has a series of obvious advantages and becomes an important part of automation. After 1990. pneumatic technology is largely improved beyond traditional methods. As the advanced research field, pneumatic servo technology attracts more and more technicians. Pneumatic servo position. The bowl-growing tray of rice was manufactures using straw (plant fiber) as material. And the aspirating seeder of grow-seedling of rice was designed and trial- manufactured basing on man-made seed-bed soil, which was made of rice – shell poacher and soil. Then it turnout to be feasible through.
Key words: bowl – growing tray，spiraling;，eider
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