Use the ditches next to the idle vegetable greenhouses to grow rice, and implement interplanting rice and vegetables, can make full use of arable land resources, increase rice planting area and reduce agricultural non-point source pollution, and increase the species diversity to control pests and diseases. When multiple crops of vegetables are grown in plastic greenhouses, excess water and fertilizer will leak into the ditches. These leaking fertilizers can ensure the normal growth of rice in the ditches. Interplanting rice with greenhouse vegetables can realize the recycling of agricultural resources, with obvious economic, social and ecological benefits. It is a model innovation of sustainable agriculture.