Human resource development is one of the effective methods for increasing efficiency and optimum use of individual and group abilities and especially faculty members in order to achieve organizational goals. Therefor the purpose of this descriptive-survey research was validation (confirmatory factor analysis) of the necessary components for human resource development (faculty members) of colleges of agriculture. The statistical population consisted of the faculty members of the Colleges of Agriculture (N=1837), which included 284 members which has been selected trough multi-stage sampling method as the sample. The research instrument was a questionnaire and its validity was assessed by a group of faculty members and experts from the University of Tehran and the reliability was confirmed by Cronbach's alpha coefficient. Data were analyzed using software Lisrel 8.54. Results of confirmatory factor analysis showed that personal development, socio-cultural, professional, organizational and educational development of faculty members were the main components. The comparison of components among universities showed that the component of the socio-cultural development, professional development, organizational development and educational development of faculty members were significant differences among large, medium and small universities.