［Purpose］ In order to explore the implementation details of good practice, this paper analyzes the policy framework elements of data journals, to benefit the development of Chinese data journals and accelerate the pace of scientific discovery. ［Methodology］ This paper is based on the pragmatic methodology by using literature review with the method of reasonable competing to filter and refine policy elements. ［Findings］ Data journals should focus on their submitted standard （commit object, contents format requirements, ensuring data authentication）, and quality control process （contents of the data descriptor, producing process of the data descriptor, audit the data storage repository）, and the statement to safeguard the rights and interests of the parties （readers rights, authors rights, the rights of scientific research institutions and agencies,and so on）. ［Conclusions］ Under the demonstration effect of authoritative journals, policies are formulated to accord with the development of data journals in our country, so as to promote the opening and sharing of research data.
