Abstract: In dry area or sandy dryland, for the reason of scarce rainfall, windiness and lack of labor power and material resources, the low survivor ratio of afforestation were common. Using these techniques, namely, Water retaining agent, Water retaining agent + Coverage of plastic film, Water retaining agent + Coverage of plastic film + Root inducing powder to Heaven Ailanthus, the experiment which aimed to increase water content of soil, water content of leaf, to promote the survivor ratio were carried out. The result showed that: comparing with controls, influences of these methods were significant. Among these methods, the effect of Water retaining agent was good, Water retaining agent +Coverage of plastic film was better, and the comprehensive of Water retaining agent + Coverage of plastic film + Root inducing powder was the best. It is concluded that using techniques of drought resistance in dry area or sandy dryland could solve the problem in afforesting.