Abstract:Not only the grain rations must be secured absolutely in China, but also the feed grains. However, the limited arable land resource in China determines that grass planting shall not "compete for land with staple food". Planting high quality salt-tolerant forage grass on the saline wasteland and developing animal husbandry production can not only meet the demand of increasing proportion of animal protein in Chinese diet structure, but more importantly, it can help to solve the problems of insufficient forage planting and import over-dependence. Hence it plays an important role in guaranteeing national food security. Therefore, it is necessary to use modern biological seed industry technology to accelerate the selection and breeding of salt-tolerant and water-resistant grass varieties, build the supporting system of coastal salt-alkali grass high-yield cultivation technology, and develop high-quality forage and crop straw mixed processing and storage technology to achieve the maximum utilization of biomass resources. The construction of "Coastal Grass Belt" will help to build an ecological barrier in the coastal area, and play an important role in keeping the coastal ecosystem healthy and improving the ecosystem service function.