During the past few years, many banks try to move from traditional banking system to entrepreneurial one to create new opportunities as well as changing the conditions to deal with the environmental threats. Therefore, recognizing the entrepreneurial orientation and the factors influencing plays an important role for amplifying the innovation and preparing the conditions for the banks to enter the risking process of entrepreneurship. The purpose of this article is to propose a model for entrepreneurial orientation, which can be used by policymakers and managers of banking system towards improving the entrepreneurial orientation. This paper performs a survey among 700 employees of private banks in Tehran, Iran. To collect the required data, the questionnaire was distributed randomly among 350 staffs of these banks and 184 were found to be useful to process. The results show that the entrepreneurial orientation, cultural factors and among organizations factors, making proper connections between organizational unit and high manager support had a good condition. Moreover, organizational conflicts, inappropriate rewarding system, economical and political conditions and the values were not considered as positive adjustment. Thus, the proposed model, as an aborigine pattern, can be used by policy makers and high managers of Iran’s banking system to provide the necessary conditions to enter the entrepreneurial process in the banking system.