The current study investigates and evaluates the moderated mediation model by examining at the direct and mediated effects of workplace bullying on employee cynicism through emotional labor, using core-self-evaluation as a moderator, using the conservation of resource theory as a perspective. An online questionnaire survey is used in the research design. The data was analyzed using SPSS and AMOS. To evaluate the data from 216 workers, correlation analysis and regression were performed using all exogenous constructs as independent variables and the endogenous construct as the dependent variable. The study’s findings revealed that workplace bullying causes emotional labor among teachers, leading to employee cynicism, with core-self-evaluation as a significant mediator. The current study’s findings have consequences for both practice and theory. Because there is always room for improvement, the current study outlines several potential future research topics, such as time-lag studies with large sample sizes