With the consent of the provincial government, the Hainan Provincial Action Plan for Optimizing the Business Environment (2019-2020) was recently issued, and 29 reform measures were proposed from 11 aspects. Among them, in the aspect of property registration, it is necessary to explore the establishment of a blockchain real estate registration model and gradually realize the linkage of real estate registration and multi-sector data. (Responsible unit: Provincial Department of Natural Resources and Planning, Provincial Department of Industry and Information Technology, municipal and county governments; time limit for completion: June 2020)