This study explores the impact of demographic factors, Macroeconomic Factors and Government Policy on Used-Residential Housing Price in Metropolitan Areas, and the sample period is from 2001 through 2018, containing six domestic metropolitan area’s data, including Taipei City, the New Taipei City, Taoyuan City, Hsinchu City, Taichung City, and Kaohsiung City. Research sample includes 1512 observations. Our empirical results indicate that there is a significant negative correlation between old age dependency ratio, Fertility Rate, Net Immigrants, mortgage interest rates, Wholesale Price Index, Actual Price Registration and Used-Residential Housing Price; a significant positive correlation between employed population growth rate, Per Monthly hours for Work, House Rent Price Index, Stock Price Index, M1B Money supply, Rate of Economic Growth, Consumer Price Index and Used-Residential Housing Price.