Introduction: Health care organizations strive to achieve quality as a principle source of competitive advantage by using quality improvement models. These models provide adequate tools for assessing hospital’s performance .The present study aimed to review the expert’s viewpoints on using quality improvement models in Iranian health care centers. Method: This was a semi- structured qualitative study conducted in 2016. The population of study included experts in the field of quality improvement in Iran selected using purposeful sampling (n = 15). Face-to-face interviews were performed to gather information. Each interview was transcribed, coded and systematically extracted based on the content analysis method. Data analysis was conducted via MAXQDA software (2010). In addition, data validation was confirmed by the research team.Findings:Data were mainly categorized and reported into two themes: 1) quality improvement models proposed in health centers and their common features 2) five main categories for advantages and disadvantages of using quality improvement models, recommended strategies, achieving organizational objectives, focusing on results and 16 sub categories.Conclusion:Our findings revealed that it is necessary for hospitals to implement quality management system models. Quality improvement models, as a powerful tool, can promote the quality and clinical effectiveness; however, there are some advantages and disadvantages in the implementation process. In addition, our results suggest that paying attention to organizational structure, development of an appropriate organizational structure and consequently patient’s safety improvement can be helpful and contributing in the deployment and maintenance of the quality improvement models in health care centers
