Based on the case of Guangdong Tax Wechat，this study analyzes its current status and effectiveness in terms of function design，reading numbers and the growth of number of fans. Meanwhile，this research also conducted a survey to segment users of Guangdong Tax Wechat into several groups. The study suggests that：1） Tax Service institution should set up provincial media centers to assist the improvement of city-level publicity affairs with a more coordinated and integrated approach；2） using more popular words to express and explain professional content related to tax policy or knowledge；3） attaching more importance to to users’ feedbck and interaction part.