Real estate brokerage uses the huge E-commerce service and the the Marketing function recently.What kind of influence does E-commerce on performance for real estate brokerage? This study uses the E-commerce function,E-commerce input,and accepted degree of information technology to probe into the impact in business performance of the real estate brokerage.Questionnaire interview with the real estate brokerage of Taiwan Province and regression models is used in the estimation of performance.The empirical results show that the E-commerce function,E-commerce input,and accepted degree of IT have a significant effect on non-financial performance and financial performance in the real estate brokerage.