Abstract: The experiment in the planting peanut covered with plastic film comparing with that no the film in the plateau region of central yunnan indicated that the Peanut field of covering with the film (A) and with both the ashes and the film (B) increased by 124% and 145%,respectively, and the field in the area B increased by about 10% more than that in the area A.This Paper also discussed the effect of increasing temperature of upper soil covered with the film,the relationship between the peanut field and the climate in Yunnan province, and the problems which should be paid attention to when the technique is popularized and applied in the south, central and north parts of Yunnan.

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