Sulfur-coated urea is a new type of nitrogen-based fertilizer with the function of sulfur fertilizer. It is also a new product that will replace common urea in the future. This product can not only supplement sulfur to the soil and increase crop yield, but also can To improve the quality of crops to a certain extent, it has the characteristics of saving fertilizer, labor, increasing production, increasing income, improving the ecological environment, preventing excessive chemical fertilizers from burning seedlings of crops, and ensuring the growth of crops. It can be used for cotton, wheat, corn, rice, fruits, vegetables, fruit trees, turf, horticultural crops and various economic crops, etc. It is a new type of fertilizer that meets the needs of green food production and is the necessary material basis for ecological agriculture. According to different growth stages of crops, nutrients are released according to nutrient requirements, which can reduce nutrient loss, improve the utilization rate of fertilizers, save resources and protect the environment. The empty shell of sulfur fertilizer can store water, pass through the soil, repel insects and kill bacteria, sulfur fertilizer and its compounds can also be used for the improvement of saline-alkali soil. Sulfur fertilizer urea is very suitable for domestic agriculture's requirements for slow and controlled release fertilizers, and has a very broad market development prospect.