In order to provide reliable technical support for the scientific application of nitrogen to rice in meadow albicsoil， this paper carrys out a multi-point experiment on the study of the amount of nitrogen fertilizer on meadow albic soil in SanjiangPlain，and put forward an optimized fertilization technology for rice in meadow albic soil according to the correspondingrelationship between fertilizer amount and riceyield，and verify it in large -scaleproduction.The results show that there is aquadratic curve relationship between rice yield and nitrogen application rate on meadow albicsoil，which increases with theincrease of nitrogen application rate.When the nitrogen application amount is 101.50 kg·hm -2，the maximum theoretical yield can be 8 279.70 kg·hm-2.The yield will decrease when the amount of nitrogen applied exceeds 101.50 kg·hm -2. When the amount of fertilizer applied is 97.56 kg·hm-2 and the theoretical yield of rice was 7 909.43 kg·hm-2，rice couldobtain the greatest economic benefit.The yield of rice has a quadratic function relationship with the amount of nitrogen，and the nitrogen content of the plant increases with the increase of nitrogen applicationrate.However，the decrease ofnitrogen quantity and rice yield is related to the decrease of rice biological yield.Large -scale demonstration shows that thebest recommended nitrogen fertilizer amount for meadow albic soil is in line with the actual agriculturalproduction，and the production target of high yield and high efficiency can be achieved when the nitrogen fertilizer amount is 100 kg·hm-2.