By means of field investigation and research in combination with spot reconnaissance, according to the plan of soil and water conservation of the West Gas Supplying to East Project, the paper has comprehensively evaluated the soil and water conservation precaution and protection, the engineering and vegetative control measures, the land reclamation measures, the implementation of soil and water conservation investment funds, and the supervising and monitoring of soil and water loss. Some proposals concerning problems of soil and water conservation measures lower quality and lagging behind the principal part of project are put forword. It is very important to enhance environment protection and carry out the soil and water conservation system of simultaneously designing and constructing and put it into operation.