Based on defining the data of reading promotion on-line activities, the article introduces in detail the analysis indicators and contents of user data, graphic data, menu data and interactive data of reading promotion on-line activities, and explores the direct application of data analysis in reading promotion on-line activities by centering around the user information label, on-line activity correction, on-line activity orientation and visualization of on-line activity effects, and further analyzes the extension application of reading promotion on-line activity data by focusing on decentralized and diversified activity links.