The research of modern museum information system is not only the research of cultural relics ontology information，but also the research of Museum related people，objects，data and information interaction among them. The rich digital resources of museums are valuable wealth for the research of Digital Humanities. As an important part of Museum data，audience service big data has important research value. Taking the audience service big data of the National Maritime Museum Of China as an example，this paper analyzes the source，the management，the visualization of the audience service big data，and the phenomenon of the new immigrants in the museum audience，and propose the exploration direction of using the museum data to provide smart service for the new immigrants in the city，as well as the new ideas of Digital Humanities Research.