作为世界上发展速度最快、占地面积最大的发展中国家，中国经历了大量类似发达国家曾经的景况，而人口红利就是其中最具代表性的一种。东北地区作为我国发展最早的区域，也是随着时代变革而逐渐衰微的地区，其变化具有显著的代表性。本文采集东北三个省份的人均生产总值、人口红利、劳动参与率、库兹涅茨效应、非农业部门生产率变量数据，基于青木昌彦模型的因素分解，使用百分比混合柱状图表现进行分省及统一分析，结果发现：东北三省的人口红利逐渐出现衰减趋势，应采取必要措施转变为人口质量红利。上述发现具有一定的政策启发意义。
 

As the developing country with the fastest development speed and the largest area in the world, China has experienced a lot of situations similar to those of developed countries, and demographic dividend is one of the most representative. As the earliest developed region in China, the Northeast region has also gradually declined with the changes of the times, and its changes have significant representativeness. This paper uses the factor decomposition of Aoki Changyan model to tabulate and plot the variables of GDP per capita, demographic dividend, labor participation rate, Kuznets effect, and productivity of non-agricultural sectors, and conduct effective empirical analysis.