An interactive two-level fusion algorithm based on evidence theory is proposed. The data from different information sources obtained by the data fusion system are classified in detail, and the different roles of non-real-time information and semi-real-time information in the early and middle stages of data fusion are clarified. This paper designs and implements a value-added platform based on Java language, using SSM framework, AngluarJS framework and Shrio security framework. Analyze the teaching organization form, teaching evaluation method, teaching management mode and other elements of the blended teaching model, emphasize the learner-centered constructivist education concept, rely on the smart online teaching platform to collect teaching process data, and provide the basis for teaching assessment and teaching improvement . While reducing the use cost of the resource sharing platform, it can eliminate resource heterogeneity and provide services on demand, providing a reference for further optimizing the distance education resource sharing system.