This paper presents an empirical investigation for the implementation of enterprise resource planning among 58 production units in province of Ilam, Iran. The proposed study of this paper considers the readiness in terms of six factors including human resources, financial resources, infrastructures, quality control, and information systems and communication technology. Using structural equation modeling, the study examines six hypotheses and the implementation is accomplished on LISREL software package. Cronbach alpha has been calculated as 0.91, which is well above the minimum desirable level. The results of the survey have indicated that all six mentioned factors influence positively on ERP implementation and for a successful implementation of ERP, it is suggested to consider these factors, seriously.