With the deepening of the aging of the population, policies related to pension services have been continuously introduced, and the focus of policies has been adjusted with the times. This paper selects the policy texts related to pension services in the 10 years from 2015 to 2025 as samples, uses the LDA model to capture the core content of 44 policy texts for hot topic identification and classification, deeply analyzes the development direction and trend of the Chinese government in the supply of pension services, pension industry and basic pension services, and reveals the release status and theme characteristics of pension service policies. In the end, 7 hot topics were formed, with keywords focusing on "health", "community", "society", "encouragement" and other contents, which were divided into three categories: pension service supply, pension industry and basic pension service. It is concluded that the pension service should be established from the establishment of a multi-level pension system and the strengthening of service supply supervision; enrich the industrial form and realize the development of all factors; Improve the matching degree between supply and demand, ensure the continuous progress of basic pension services in three aspects, and help the high-quality development of China"s pension services.