This paper explores the importance of library document delivery work in the network era, pointing out that from both the humanistic and cultural environment and the digital resource construction environment, more people have begun to pay attention to the openness of information resources and promote their wide dissemination and efficient utilization. It analyzes the current situation of the knowledge sharing concept in the knowledge society in the library document delivery work. Through the data analysis of the research on document delivery work and the specific practical activities carried out by the Library of Minzu University of China, with the help of the statistical data of the document system service platform and the actual work carried out, it explores the characteristics of the current document delivery work and puts forward specific suggestions on how to improve the efficiency of the document delivery work.