Introduction: The most significant issue regarding the study of change in organizations is related to organizations environment; the territory in which organizations form and change. Environmental dimensions and features are the values used to estimate and understand the environment surrounding the organization.The main focus of this study is to identify the effective environmental dimensions and features on the organizational entrepreneurship in Iranian Public hospitals and in order to estimate their effectiveness on the entrepreneurship activities.Methods: The country’s pole scientific hospitals are the environment of the research and the statistical sample of it consists 500 of mid managers and experts including the supervisors, head nurses, nurses and the experts of official affairs who have at least the bachelor’s degree. In the research, the classified random sampling method has been used. In collecting the data, the standard questionnaire had been used and methods such as operative analysis, path analysis and model fitness by means of SPSS and LISREL software were applied.Results: The amount of KMO Index of environmental features is 83%, their p-value is under 0/05 and the accomplished division covers 89 percent of the variance, which means the derivate environmental values are really suit. The amounts of fitness accuracy of CFI, NFI, RFI and IFI of this model were all more than 0.99, the amount of its GFI is 0.99 and the amount of RMSEA is 0.05 which was suitable. The relation of environment dimensions, its values together, related employment variable and also the considered paths had been accepted.Conclusions The dimensions of dynamism, complexity, munificence, struggle and their features in the external environment of Iran public hospitals had existed, while they have all kinds of direct and significant effect on its organizational employment.Therefore, the existing circumstances in the outer environment are ready for persuading, impulsion and leading the hospitals toward employment and encountering the existing evolutions.