Sand-dust storm is a disatrous weather process. Its formation and development are closely related with the rarevegetation coverage and the bare and loose ground surface. Since the bare farmland and degraded grassland with lowervegetation cover in winter and spring supply the major source of sand and dust, a key approach to dust storm control istransformation of bare farmland and degraded grassland through agricultural measures. They are (1) adjusting croppingstructure, changing mono-cropping into mixture of cereals and grasses and inter-cropping of them and rotation of farmland andgrassland, thus introducing forage crop and winter crop (including winter wheat, Dong-mu No. 70 Ryegrass, etc) to thetraditional farming system and increasing the vegetation cover in winter and spring; (2) extending the protective cultivationsystem and enhancing the mulches on the ground surface through implement of ploughless farming and enlarge of stubbles, thusenhancing the soil-holding capacity of roots and stubbles; (3) strengthening the protection and construction of grassland throughstrict forbidding cropland expansion in steppe zone, absolutely avoiding over-grazing and over-fuel gathering ed digging,extending shifting grazing system and in-house animal raising, while increasing the exclosure-fencing scale and the grasslandconstruction scale; (4) developing intensive agriculture and animal husbandry and extending advanced techniques of cultivationand animal raising, thus concentrating human activities in the land with better conditions and reducing the human pressure onthe eroded farmland and grassland.