Abstract
At present, with the rapid development of science and technology network and the continuous update of hardware facilities, the emergence of new interactive media, paper teaching materials have been gradually replaced by mobile online courses. In the design process of building online course products, we should not only pay attention to the text content of teaching, but also give students and teachers a good use experience through reasonable design based on the psychological factors of users, so as to meet the user's sensory experience. This paper will start from the basis of design psychology, analyze the content of product design psychology, and explore the interface design, function realization and sensory experience of online course education software. The research results of this paper are of great significance to online course design.