Abstract: In view of the status quo of Northwest China where the agriculture depends more and more on chemical fertilizers and pesticides to keep high crop yield and pollution is becoming increasingly severe,the strategy to develop the grassland eco agriculture and product restructuring has been put forward as the way out for sustainable development of the agriculture in that area.It’s suggested that the 4 items,exploiting new sources of organic manure through varied paths;raising value of field crops by making waste resources;finding source of dairy cow quickly and increasing biodiversity of system should have the priority for development to make the ecological environment improved,the income of the peasants increased and lead the agro ecological system into a sound circulation.