Abstract: ［Purpose/Significance］This article systematically reviews the accepted papers of Joint Conference on Digital Libraries 2019 (JCDL), and introduces the latest research and the disciplinary development trends. It intends to help domestic scholars in the domain of library and information science better understand the research achievements of JCDL 2019 and the cutting-edge hotspots of international digital library. ［Design/Methodology］A literature review was conducted in this paper.
［Findings/Conclusion］JCDL 2019 pays more attention to how digital libraries can achieve a deep integration of informationservices through the fusion of multi-source data and the utilization of digital humanities collection resources. Researchers also focus on how digital libraries can improve the service through the mining and utilization of massive data and the analysis of user behavior. In addition, there is also a focus on the innovative application of informatics in academic accreditation and evaluation through in-depth mining of scholar resources.［Originality/Value］This paper reveals the latest development trend and forecasts the academic cutting-edge directions of digital library in the future.

Key words: Joint Conference on Digital Libraries (JCDL), Digital library, Information service, Digital humanities, Information behavior, Information recommendation, Academic evaluation