The purpose of this research is to investigate the impact of Chinaʼs low birthrate and aging population on the age structure of Chinese visiting Japan. In this study, we take the changes in the age structure of Chinese visiting Japan from 2006 to 2017 as objective variables, and set factors that may affect the changes in age structure as explanatory variables, and then use correlation coefficients and multiple regression analysis to determine Examined the correlation between the two. The results of the investigation show that the factors affecting the proportions of the various age groups of Chinese visiting Japan are as follows: In the “40 to 44” age group, it is “the proportion of the population over 65 in the total population”. In the “55 to 59” age group is the “child dependency ratio”. The two age groups “60 to 64” and “65 to 69” are the “elderly dependency ratio”. In the “70 years and older” age group, it is “the proportion of the population over the age of 65 to the total population”. As a result, this study has reached the conclusion that the age structure of Chinese visiting Japan will be tilted towards the elderly to a certain extent.