Using China's provincial data from 1989 to 2011 and population aging indexes represented by elderly population shares and elderly-young ratios，this article examines spatial inequality and distributional dynamics of China's population aging with Dagum's Gini coefficient and Kernel density estimation
method．GIS mapping visually demonstrates that China's population aging is characterized by significant spatial inequality．Gini coefficient and its decomposition suggest that the spatial distribution of population aging in China exhibits certain fluctuation．The disparity among regions is the major source
of overall inequality and the impact of intensity of trans-variation also grows steadily．Kernel density estimation indicates that the degree of population aging in China continues to be deepening and regional inequality is widening．