"Cloud buying a house" refers to a new way for buyers to complete the purchase through online VR house viewing, online information release, online registration, online notarization and lottery, online public housing selection, online contract signing and other links in the whole process of commercial housing sales. This method mainly makes use of the convenience and real-time performance of Internet technology, so that buyers can complete the whole process of buying a house without leaving home, which improves the efficiency and convenience of buying a house. At the same time, "cloud buying a house" also helps to standardize the housing sales market and promote the healthy development of the real estate industry.