In order to advance Human Resource it is necessary to develop a Human Resource Management model. In many studies, a model is presented by the researcher in most of which the relationship between variables is not properly defined and illustrated. To fill such a gap, this study aim to determine effective and affected variables and to identify the key variables in human resources development model in public sector of Kerman province. Since we collect our data according to opinions of some experts in this field, the research method is descriptive-survey-oriented. The statistical population of the study consists of experts in human resource field in public sector of Kerman province, who both work in the field of human resource development and possess sufficient experience in the public sector. The research also takes advantage of snowball-sampling method: twelve experts participated in this study and the questionnaire data are analyzed according to Fuzzy DEMATEL technique. According to our findings, variables like proper employment and appointment policies, human resource management practices, enhancement of ethical values, performance evaluation system, effectiveness, individual growth and development, and appropriate budget allocation play important roles in the development of human resource in Kerman province. To put it differently, these variables have a higher interaction in a network of relationships with their own variables.