[目的/意义] 梳理孟连生先生在资源建设与文献信息检索方面的研究成果，回顾先生在这一领域的实践经历，展现老一辈图情学人的奋斗及探索精神。[方法/过程] 运用文献调研法结合人物访谈对先生的研究成果、工作手稿加以分析，从资源建设与信息检索两个方面进行总结。[结果/结论] 先生的研究博采众长，不仅有丰富的理论研究成果，更有充实的中国科学院及NSTL数据库建设实践经验，实现理论与实践的结合。先生探索了信息检索、数字资源服务于用户的特征及方式，丰富了资源建设与信息检索的理论研究与实践体系。

[Purpose/significance] This paper reviews Mr. Meng Liansheng’s research achievements in resource construction and literature information retrieval, and reviews his practical experience in this field to show the striving and exploring spirit of the older generation of library and information scholars. [Method/process] Studying the research results and working manuscripts of Mr. Meng Liansheng by applying the method of literature research and interviews, the summary was made from two aspects of information resource construction and information resource retrieval. [Result/conclusion] Mr. Meng Liansheng studies library and information science from a wide range of sources. He has not only rich theoretical research results, but also rich practical experience in the database construction of Chinese Academy of Sciences and NSTL, which has realized the integration of theory and practice. He explores the characteristics of information retrieval and the way of digital resources service, which richens the theoretical research and practical system of resource construction and information retrieval.