The work aims to explore the experience obstacles of the elderly when using digital medical Apps, summarize the mapping relationship between information processing and experience obstacles, construct evaluation indicators of elderly-oriented experience, and propose elderly-oriented design strategies. The theoretical framework of experience obstacles and user experience design was proposed in combination with the "human information processing model". Based on the grounded theory, the indicators of information processing and elderly-oriented experience were constructed, and the priority weights of experience evaluation indicators were calculated by AHP. Among the overall indicators of elderly-oriented experience evaluation, the weight of information design was the highest. Among the sub-indicators, the weight of text clarity and legibility was higher than that of other indicators. Through this research, an "elderly-HIP-experience obstacle-elderly-oriented design" relationship model is established. An experience indicator system of 4 overall indicators and 14 sub-indicators is summarized, and an elderly-oriented design strategy is put forward. The research will deeply dig out the barrier types of the elderly in different stages of experience design, and provide guidance and suggestions for the elderly-oriented design of mobile Internet products.