Abstract: 【Purpose/significance】Identify and analyze the key influencing factors and hierarchical relationships of the digital inclu⁃ sion of the elderly, and provide theoretical reference for the government to formulate effective policy measures.【Method/process】Tak⁃ ing the review text as the research object, the LDA topic model was used to mine and identify the important influencing factors of the digital integration of the elderly, and then the DEMATEL-ISM model was used to analyze and study the importance and hierarchical relationship of each influencing factor.【Result/conclusion】The research results show that the digital integration of the elderly is af⁃ fected by a total of 9 factors at 4 levels: individual, technology, society and government, including digital technology interaction, digital cultural atmosphere, digital technology security, policy measures, digital literacy level is a key factor affecting the digital integration of the elderly. Infrastructure construction and policy measures are the underlying factors, which play a protective and guiding role; psy⁃ chological motivational conditions are surface factors and are affected by factors at all levels【. Innovation/limitation】Use text mining methods to extract the influencing factors of the digital inclusion of the elderly from the review text, and construct a hierarchical rela⁃ tionship model, which provides a new perspective and analysis tool for the digital inclusion of the elderly. The applicability and robust⁃ ness of future data sources and models need to be further verified.