The current methods of information organization in the Huizhou document archives have several issues, such as scattered resources, difficult retrieval, and a lack of semantic association. These problems hinder the development and utilization of the archives. Based on the topic map technology, this paper organizes information in the Huizhou document archives, using land sale contract files as an example to construct a topic map model. The paper successfully accomplishes the generation, display, retrieval, and browsing of the topic map, followed by an in-depth analysis of the generated results. The application of topic map technology introduces a novel approach and methodology for the development and utilization of Huizhou document archives. This enhances the clarity, comprehensiveness, and ease of understanding in presenting the information within the Huizhou document archives, catering to the diverse needs of users. Simultaneously, it facilitates a more effective exploration of information in the Huizhou document archives, contributing to the dissemination of Huizhou's historical and cultural heritage.