Real Estate Industry is realized that a field of the core industry which can be created economic growth, employ, and a higher value added. Such gravity of this, The role of Real Estate Industry enlarged day by day. In future, the importance of Real Estate Industry will be prospected to be raised continually. Therefore Real Estate Industry highly need to analyse a ripple effect on national economy through the input-output analysis. This paper uses Input-output table of year 2008 of Korea to examine the economic impacts of Real Estate Industry, The result shows that Real Estate Industry on national economy follow as: First, Real Estate Industry appears greatly to induce the employment-inducing effects and production-inducing effects on the part of other industries. Second, It is shown that the price fluctuation rate of Real Estate Industry have a major effect on the price level in other industry sectors. so. it is desirable that index of the price fluctuation rate of Real Estate Industry can be used to reference data to stabilizing the price level. Finally, While we access to analyze and interpret to Real Estate, could analyze the situation and role in the national industry as exogenous and then investing economic impacts of it. it is need to continuous invest and promote to Real Estate Industry to become a future growth engine for the country economy.