Abstract: In order to explore the regularity of the absorption and utilization of nitrogen, phosphorus and potassium in hybrid rice with different aerobic treatments, a simulated microarea experiment on Shenyou 9586 was carried out to compare the content of N, P, K in the plant and alkali in the soil. The results show that with the different aerobic treatments the total weight of each pocket of grains can increase by 23.27% to 88.34% compared with that of the conventional controlled group, and that the content of alkali hydrolysable nitrogen in the soil increases by 9.09% to 51.60% when harvested, which indicates that the increase of oxygen is beneficial not only to the absorption and utilization of nitrogen, phosphorus and potassium, but also to the accumulation of dry matter and the improvement of the yield of the crop. Aerobic treatment also helps to improve the content of available nitrogen in the soil. When harvested, the content of alkali hydrolysable nitrogen in all the experimental groups is higher than that in the soil before transplanting, despite the fact that before transplanting, the former is lower than the latter.The experiment more accurately reflects the law of nitrogen and phosphorus and potassium intake of Hybrid Rice with different growth conditions.