In view of the aging of the population, starting with the willingness of the elderly to use the online learning platform and its influencing factors, the work aims to explore the design strategy of the online learning platform for the elderly combined with the characteristics of the existing learning platform, and then enhance the willingness of the elderly to use, so that the value of online education can be reflected. First of all, based on the literature research, combined with the extended technology acceptance model and the innovation diffusion theory, the hypothesis model of the factors affecting the use intention was constructed. Secondly, the research object was selected to conduct a questionnaire survey, and the reliability and validity of the data were analyzed. Thirdly, structural equation model was used to analyze the main factors and internal causality of the willingness of the elderly to use online learning platform. Perceived usefulness and compatibility directly influenced users' willingness to use; Perceived ease of use, perceived autonomy and content quality indirectly influenced users' willingness to use. Guided by various factors, propose a design strategy to enhance the user experience of online learning platforms for the elderly, encompassing principles of effectiveness, simplicity, willfulness and consistency, providing an effective basis for the elderly-oriented design and transformation of the online learning platform.