The main purpose of this study was to examine the effect of innovation climate on agriculture experts’ innovative behavior by focusing on the mediating roles of psychological capital and creative self-efficacy. The statistical population included all agriculture experts in Agriculture Organization of Hamedan Province (N=400), from which 178 agriculture experts were selected as the statistical sample. Data were collected using a standardized questionnaire. The results of structural equation modeling indicated that psychological capital and creative self-efficacy were significantly related to agriculture experts' innovative behavior. In addition, the results showed that innovation climate was directly and positively related to agriculture experts’ creativity. The mediation analysis revealed that creative self-efficacy partially mediated the relationship between innovation climate and agriculture experts’ innovative behavior. These findings help to better understand the mechanism of effect of climate innovation on agriculture experts' innovative behavior. The theoretical and practical implications, limitations, and future research directions are discussed.