Abstract: It has a very strong practical significance to research on suitability of natural ecological restoration under different natural conditions and implementation of soil and water conservation.According to the theories of natural ecological restoration,the effects of natural factors and human factors on the function of the natural ecological restoration are analyzed.And then the suitability of natural ecological restoration for soil and water conservation is analyzed qualitatively and quantitatively.Zonal regionalization and application of GIS technology as well as the function and suitable measures of artificial ecological restoration are discussed in this paper.The methods to evaluate suitability of natural ecological restoration come up with new development.