Background: Uncivil is one of the major challenges facing nursing education and learning processes in the classroom, clinical, and online for distance education programs. In addition, uncivil activities can have a detrimental effect on learning, critical thinking, physiological and psychological health (Luparell, 2011). The aim of the study: investigate uncivil behavior as perceived by nursing students and it effect on their critical thinking and burnout inventory. Subjects and method: A descriptive correlation research design was utilized. Setting The study was conducted in Faculty of Nursing at Minia University. Subject: The present study included a representative sample from total number of nursing students enrolled at1st, 2nd, 3rd, and 4th academic years during the academic year 2020-2021 (N=896). Tools of data collection: 1st tool divided into two parts, first part Personal data, second part Uncivil Behavior in Clinical Nursing Education (UBCNE) instrument, 2nd tool; Critical Thinking Disposition scale, and 3rd tool Burnout Inventory. ResultsResults: the majority of nursing students have low level of uncivil behavior and high level of critical thinking, while the minority of them have high level of burnout. Conclusion: The present study concluded that, there were a positive correlation between uncivil behavior and burnout =, while there was a negative correlation between uncivil behavior and critical thinking. Recommendations: Regular monitoring and evaluation of uncivil student behaviors in the class room and clinical setting to decrease it is effect burnout student, and promote critical thinking