Data is increasingly being applied in daily life: reverse customization through consumption data, credit loans based on credit data, and intelligent guidance through medical data... Behind the implementation of these application scenarios is the processing and trading of a large amount of data. On December 15, 2023, the National Data Administration released the "Data Elements" document ×” The Three Year Action Plan (2024-2026) (Draft for Comments) (hereinafter referred to as the "Action Plan") proposes that by the end of 2026, the breadth and depth of data element application scenarios will be significantly expanded, the average annual growth rate of the data industry will exceed 20%, and the scale of data transactions will double. What is data trading? What content can be traded? How to bring more dormant data resources to life? Beijing Surveying and Mapping Design Institute has completed the country's first spatial data transaction in an emerging and rapidly developing field, and 6 hospitals have broken the ice in data circulation transactions nationwide. Jishuitan Hospital has achieved a valuation of 10 million yuan in orthopedic surgical robot data and invested... Recently, the Beijing International Big Data Exchange has released multiple new developments in data trading. "As of November 2023, the data trading filing scale of the Beijing International Big Data Exchange has exceeded 2 billion yuan, with more than 500 trading entities." Fan Wenzhong, Chairman of Beijing Financial Holding Group, said that in the future, the Beijing International Big Data Exchange will also promote the construction of a data trading market with collaborative connectivity, internal and external coexistence, and nationwide coverage, gather various data resources, and activate various trading market participants, Strive to achieve a cumulative transaction filing scale of over 30 billion yuan by 2026. With the development of the digital economy, data transactions across the country are rapidly increasing. On November 26, 2023, institutions such as Toubao Information Technology Nanjing Co., Ltd. and Shanghai Data Exchange released the "2023 China Data Trading Market Research and Analysis Report" (hereinafter referred to as the "2023 Data Trading Report"), which showed that the Chinese data trading industry has experienced a stable and high-speed growth stage in the past few years. In 2022, the overall market size increased by 42.0% compared to the previous year, reaching 87.68 billion yuan, It accounts for 13.4% of the global data market trading scale and 66.5% of the Asian data market trading scale. What are the contents of transactions in this massive market? In what aspects is it applied? Industry insiders introduce that data trading is the act of classifying, pricing, circulating, and buying and selling data as a product. It is one of the basic ways of data element circulation, helping data elements achieve information and currency exchange. In this process, the transaction is not based on the original data, but on the basis of obtaining the original data through legal means, the relevant parties use certain algorithms to deeply analyze, filter, refine, integrate, and desensitize it to form derivative data with exchange value and technical feasibility. In the first national spatial data transaction, Beijing Institute of Surveying and Mapping Design and Research, based on its independently obtained local spatial data of the central axis, formed relevant data products through data asset registration, data quality evaluation, data asset value evaluation and other procedures, and traded them to Beijing Hetu United Innovation Technology Co., Ltd. through the trading platform of Beijing Institute of Statistics. And the traded data is developed into interactive products, utilizing