Strategies for ecological environment construction and agricultural sustainable development in Loess Plateau of Gansu province should be highlighted on soil and water conservation refer to extensive scale construction, hilly and gully area superior to another regions, water conservancy and grass and forestry industry related to trades, green industry in the industrial structure, comprehensive effect for selecting project, high and new techniques superior to traditional techniques. We also have brought up the entirely strategic objectives and specific objectives of agriculture, forestry, animal husbandry and grass production fitting to the strategies. Furthermore, suggestions and countermeasures such as building commodity agricultural product base, developing specific agricultural enterprises with local features, improving the rainfall use efficiency, optimizing modern agricultural productive essential factor inputs and technology structure, paying great attention to ecological resiliency and rebuilding, adjusting and optimizing animal species and structure of livestock, supporting the poorer, increasing the comprehensive development of countryside economy, were discussed.