Continuous improvement of organizational performance creates a huge synergistic force that can support the growth and development program and create opportunities for evaluating organizational excellence. Governments, organizations and institutions are making progressive efforts in this regard. Without reviewing and gaining knowledge of the progress and achievement of goals and without identifying the challenges facing the organization and obtaining feedback and information on the implementation of policies and identifying issues that need serious improvement, continuous performance improvement will not be possible. All of the above is not possible without measurement and evaluation. The European Quality Award has left a mark on the competitiveness of European companies and organizations, and the widespread use of these models in other countries is undoubtedly the reason for the amazing effectiveness and impact of these models. In this article, the definitions and theoretical foundations of performance evaluation of excellence have been studied in a completely scientific way.