[Purpose/Significance] Based on the metadata of Re3data platform, this paper makes a multi-dimensional analysis on the development trend of scientific data repository, and puts forward promotion strategies on the basis of the analysis results, so as to provide decision-making references for the further development of the infrastructure of scientific data repository in an open science environment. [Method/Process] Collect 2767 pieces of metadata of Re3data platform through API interface, clean data and build data set. On the basis of the data set, the paper conducted a multi-dimensional macro observations and scans of the development of domestic and foreign repositories, including three levels of the basic situation of the repository, repository management, and repository services. In this process, the paper demonstrated the case description of the repository at the micro level. Then the paper summarized the challenges faced by current data repositories and proposed strategies for advancement. [Result/Conclusion] The total amount of scientific data repository is increasing continuously. The content formats and types of scientific data repositories are more diversified. The framework of repository technology, metadata standard and data service form coexist in multiple forms. These development trends in diversity also bring challenges. It is necessary to build a virtuous cycle of data sharing incentive ecological system, enhance interoperability of heterogeneous data repository platform, promote discipline standardization of repository metadata standards and strengthen the training and guidance of repository data managers to meet the challenges posed by diversity.
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