In order to implement the strategic plan of the central government as soon as possible, which about, how to do well in preventing and controlling sands around Beijing and Tianjin,how to contain the continual sandy process and desert spreading, how to strengthen the controlling level of sand and degeneration process and how to lighten wind and sand damage to the areas around Beijing and Tianjin, we start the test demonstration study of comprehensive realignment technology of sand and degeneration process of the grassland in the Hunshandakesand. The intent of it is to completely comprehend the forming and evolution law of sand and degeneration process of the grassland in the Hunshandakesand, to seek new way for solving the contradiction between animal and grass, to seek comprehensive realignment model of the grassland ecology environment,to seek sustained development model of water, grass and animal and to research,develop and introduce comprehensive realignment technologies of sand and degeneration process of grassland and rational use technologies of water and grass resources. Finally,through controlling engineering to compose,integrate demonstrate and spread all these kinds of technologies and make our new model become reality, which will provide decision basis and technology support for preventing and controlling sand of grasslands and leading the regional masses to get out of poverty and become rich.