The present study aims to identify and understand the phenomenon of employee depersonalization in government organizations; analyze the antecedent and consequent factors using the Fuzzy Cognitive Mapping (FCM) method.The present study is applied-developmental in terms of its purpose and exploratory in terms of data collection. This research is mixed and includes qualitative and quantitative data and is based on the deductive-inductive philosophy. The statistical population of the study includes university professors in the field of human resource management and organizational behavior, managers and employees of government organizations, 30 of whom were selected using the purposive sampling method and based on the principle of theoretical adequacy.Interviews were used to collect information in the qualitative part, the validity and reliability of which were confirmed through the agreement of two coders and theorists, as well as the method of intra-coder and inter-coder reliability measurement. In the quantitative part, the instrument for collecting information was a questionnaire, the validity and reliability of which were also confirmed using content validity and test-retest reliability.Qualitative data were analyzed using coding process and theme analysis method and quantitative data were analyzed using fuzzy cognitive map method. In this study, the research findings indicate that among the antecedent factors of employee depersonalization, lack of self-confidence and self-esteem in employees with central index(11.67)has been identified as the most important antecedent factor.Also, among the consequent factors of employee depersonalization, decrease in the efficiency and productivity of the organization with central index (12.45) has been identified as the most important consequent factor