Abstract: The main reason for the slow growth,the weak quality,and the low survival rate of plantlets after taking out from vessels is the traditional way of the tissue culture plantlets.The characteristics of this way are the weak sunshine in the sealed little vessels,the lack of carbon dioxide, the high humility and the accumulation of poisonous gases,such as ethylene.By means of environmental engineering and adjusting the conditions of microecological environment in vessels,the quality and productivity of the group-cultured young plant could be enhanced and the cost lowered,and a new model for factory production has been created.