These days, achieving IT-business integration and gaining competitive advantage essentially rely on successful development of information technology strategic plan. According to the importance of the subject, whether or not a company achieves its goals effectively and implement IT master plan successfully depends on the investigating all the factors affecting on IT-business alignment. This investigation is the primary step. Therefore in this research we sought to propose a conceptual model to evaluate the organizational readiness for establishing such alignment. In this regard firstly we conduct a thorough literature review to study previous models and frameworks related to such subjects. After that the Luftman’s model is chose as a core and basic model till we used benchmarking to revise it with compare to the other frameworks and models. Finally the proposed model was used in a case study to evaluate the organizational readiness for establishing IT-business alignment.