en عمومى General پژوهشي Research <hr> There are various studies on the eco-innovation in the literature, but there is a scarcity of studies on the adoption and diffusion within manufacturing small and medium-size enterprises (SMEs). Drivers to adopt eco-innovations by manufacturing SMEs are required to be understood properly and be analyzed regarding the relationships among them. Hence, the purpose of this study is to identify the main drivers of eco-innovation adoption by Iranian manufacturing SMEs from the literature and further model them based on experts&rsquo; opinions. We have utilized the valuable opinions of experts to develop a hierarchical model of drivers utilizing Interpretive Structural Modeling approach to demonstrate the contextual interrelationship among these factors. Furthermore, degrees of relationships among the drivers were obtained according to Matrice d&#39;Impacts Croises Multipication Applique&acute; an Classment analysis approach. &nbsp;Identification and modeling of eco-innovation drivers is expected to assist managers of companies to develop policies and further prioritize them to facilitate eco-innovation adoption. &nbsp; Eco-innovation, Small and medium-sized enterprises, Interpretive structural modeling, Adoption, Manufacturing 13 41 http://ijorlu.lahijan.iau.ir/browse.php?a_code=A-10-405-1&slc_lang=en&sid=1 M. Dalvi Esfahani mohammaddalvi@hotmail.com 1003194753284600893 1003194753284600893 No Faculty of Engineering, University of Isfahan, Isfahan, Iran H. Shahbazi nilashidotnet@hotmail.com 1003194753284600894 1003194753284600894 No Faculty of Engineering, University of Isfahan, Isfahan, Iran M. Nilashi hamedshahbazi@gmail.com 1003194753284600895 1003194753284600895 Yes Faculty of Computing, Univsersiti Teknologi Malaysia