Abstract: China actively promotes the marketization of data elements and accelerates the construction of a digital economy with data as the key element. A preliminary legal system has been established for the development and utilization of data resources. This legal system covers key data links and proposes key requirements. With the development of the data element market, China participates in the international competition of of data rules. However, the existing data legal system cannot support the development and utilization of data and is also insufficient to meet the development of a unified national data market. Based on the theoretical research and practical needs, this study concludes with proposals to solve the improvement of legislation problems of data infrastructure, data supply, data circulation, data application and innovation, data crossborder flow.
Key words : data elements; data legislation; data base system; marketization of data elements