The purpose of this study is to explore the relationship between the relational psychological contract, job satisfaction and turnover intention of civil servants. Take civil servants in the New Taipei City Office as the research object, a survey was used to collect 582 valid questionnaires, and SPSS statistical analysis software and Sobel test method were used for data analysis and processing. The results of the study found that: (1) different ages, marriages, years of service and positions showed significant differences in relational psychological contract, job satisfaction and turnover intention; (2) relational psychological contract had a significant negative impact on turnover intention; (3) Relational psychological contract has a significant positive impact on job satisfaction; (4) Job satisfaction has a significant negative impact on turnover intention; (5) Job satisfaction has a significant mediating effect between relational psychological contract and turnover intention . Based on the research results, relevant research results, practical management and future research suggestions are put forward to provide reference for local agencies and personnel management departments.