Abstract: 【Purpose/significance】With the widespread adoption of the Internet and mobile devices, WeChat Official Accounts of medical institutions have become a crucial platform for information dissemination. This study aims to establish a comprehensive, sys⁃ tematic, and scientific evaluation system, using Jilin Province as an empirical case, to assess the current state of information services provided by WeChat Official Accounts of medical institutions in Jilin Province. The findings are intended to provide references for im⁃ proving the quality of healthcare information services in the region.【Method/process】Based on literature analysis, theoretical guid⁃ ance, and expert questionnaire surveys, this study constructed an evaluation index system encompassing four dimensions: "Publisher," "Operational Information," "Information Quality," and "Communication Effectiveness". Subsequently, the Analytic Hierarchy Process (AHP) and Grey Relational Analysis were employed to comprehensively evaluate the WeChat Official Accounts of medical institutions in Jilin Province, analyzing their operational status and identifying existing issues.【Result/conclusion】The activation rate of WeChat Official Accounts among medical institutions in Jilin Province was 48.6%. While most accounts operated effectively, shortcomings such as limited information diversity and restricted communication reach were observed. The evaluation results indicated that the We⁃ Chat Official Account of the First Hospital of Jilin University (Bethune) performed the best. The "Information Quality" dimension car⁃ ried the highest weight, and the evaluation results under this dimension varied significantly across accounts. 【Innovation/limitation】 This study systematically constructed an evaluation index system for WeChat Official Accounts of medical institutions, integrating both quantitative and qualitative indicators to more accurately assess the quality of information services. In the empirical research, 20 We⁃ Chat Official Accounts from medical institutions in Jilin Province were selected as evaluation subjects. However, data collection for some indicators posed challenges. Future research could refine the index system and expand the sample size.