The purpose of this study is to describe the organizational equity, job performance and turnover tendency of teachers in private colleges and universities in China, so as to provide a basis for the development of employee retention plans in private colleges and universities.Specifically, it will determine the situation of organizational equity and the related situation of its four dimensions of distributive equity, procedural equity, interpersonal equity and information equity. By means of questionnaire survey, this paper collects 328 teachers' questionnaires from private undergraduate universities in China, and deeply analyzes the results of the questionnaire data. This paper uses quantitative analysis method and SPSS28 software to conduct multivariate statistical analysis of the questionnaire feedback data content, including descriptive analysis, correlation analysis and regression analysis. The research results show that teachers in private undergraduate universities in China disagree with organizational equity and its related dimensions, disagree with job performance and its related dimensions, and agree with turnover intention and its related dimensions. The research shows that organizational justice is significantly positively correlated with job performance, organizational justice is significantly negatively correlated with turnover intention, and job performance is significantly negatively correlated with turnover intention.