Performance improvement of government organizations requires the availability of a proper model of performance evaluation, this is because realization the objective of governmental organizations shall not be possi ble without the availability of a proper comprehensive model of evaluation and revision of plan is not possible, and organizations shall fail to realize an effective management shall fail to realize an effective management of implementation plan without taking activity results in to consideration. Different models have been suggested concerning management of orga nizational performance having their own strong and weak points, and each having taken certain aspects in to consideration on organization. The aforesaid models evaluate on organization from various aspects, and ovide proper tools of performance evaluation of modern organizations. Considering research literature and models of excellence balanced score cased, Malcolm baldridge clinical dominance, authentication, and ISO models of health treatment sector. In this research the aforesaid approaches were defined, and after wards, method of their application in educational medical treatment centers (hos pitals) of Tehran were studied. It is noteworthy that the statistical sample of the current study consists of 32 educational hospitals in Tehran.