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Background: Hospital readmission rate as a global health problem has increased over the last few decades. Congestive heart failure (CHF) is one of the most common causes of hospital readmission. Little is known about barriers of readmission rate control. The aim of this study was used for data exploring the barriers of readmission rate control. Methods and Materials: A qualitative study was designed with grounded theory approach. Data were gathered with interview. This study was started with proposly sampling and continues with theoretical sampling during 6 months. A convenience sample of 42 people was recruited from two public educational hospitals in Tehran during 6 month. The data were analyzed using constant comparative analysis. Results: Data analysis demonstrated lake of sensitivity on barriers of readmission incorrect patient’s health believes and expectations insufficient patient education, drug and diet adherence, and incorrect life style lack of active medical system , distrust on physicians and lack of communication psychological issues and patient - family challenges, were as the barriers of readmission control. Conclusion: This research had shown that the barriers of readmission control recognized by applying Qualitative research method with source triangulation better than the biomedical approach with single source. On the other hand, lack of sensitivity of partcipants on barriers of readmission control is a new finding. So, for controlling the barriers of readmission despite of exploring the barriers, making sensitive of involved people to readmission, is also proposed