Background: Ethics is a subject that has attracted a considerable attention both in business and in society. The aim of this study is to investigate the role of ethics (idealism) in sport consumers’ behavior
Method: The present research method is descriptive-correlation. Population of study includes all physical education students in Islamic Azad University (Tehran). 236 students (126 males, 110 females), by the use of cluster sampling completed the questionnaire of ethics in consumer behavior of Don Forsyth (1980) were confirmed. Data were analyzed by linear regression. 
Results: The results indicated that the maximum frequency of the variable if idealism in consumers was in an average level (142persons). Also, the results indicated a significant relationship between variables of idealism and consumer’s behavior.
Conclusion: Commitment to ethics by individuals as ethical consumers was in great significance.