In this experiment,a 6year Korla fragrant pear tree was analyzed via the means of whole excavation and organ dissection to study the effects of different nitrogen application treatments on nitrogen absorption and accumulation.The results showed that dry matter formation and nitrogen accumulation mainly concentrate in the new organs of the Korla fragrant pear tree,with the leaves of the new organs making the greatest contribution to dry matter and nitrogen accumulation.Application of nitrogen fertilizer has significant promotional effects on the dry matter accumulation,nitrogen accumulation,and yield formation of the Korla fragrant pear tree,but the effects are not directly proportional beyond a certain threshold.By combining the utilization rate of nitrogen fertilizer and agriculture nutrient effects of the Korla fragrant pear tree under different nitrogen application treatments,the recommended quantity of N was 300 kg·hm-2(0.667 kg·plant-1).