Abstract: The emissions of C0² leaded to the greenhouse effect, causing the destruction of globe ecological environment. In order to improve the ecological environment at present, the author introduces the present situation of the non-natural revegetation methods，comparing the non-natural and natural revegetation, and indicating that it should be cultivate the natural revegetation to repair the environment. Present two kinds of techniques which are the natural revegetation technique and environmental remediation revegetation technique to improve the ecological environment and promote human' s transition from material civilization to spiritual civilization .