In 2000, real estate entered china in the twenty-first century and grew rapidly to become a well-known integrated real estate service provider in mainland china. As a brand with a global home allocation resource and service background, real estate in the twenty-first century is dedicated to providing chinese clients with a professional combination of real estate services, covering brand licensing, second-hand house sales and leases, overseas construction, etc., to meet the customer's one-stop purchase demand. Real estate brokers in the twenty-first century are well known for their full professional passion, professionalism and global uniform standards of gold service. Through the internet and large data technologies, through data accumulation and continuous optimization of data models, real estate in the twenty-first century provides more scientific, comprehensive and timely information and decision-making references for buyers and brokers of houses. Here, both the seller and the buyer will receive better services from the real estate brokers to their customers. As of 31 may 2021, chinese real estate in the mainland of china in the twenty-first century had been established in 167 major cities throughout the country; there were more than 10220 shops and 73012 system members in the system。