Today many studies highlight psychological factors contributing to one's job satisfaction. One of these factors is the concept of emotional intelligence. Lately, it is an "emotional knowledge" rather than "academic knowledge" which is highlighted most since it seems that emotional intelligence is much more powerful than academic intelligence in employee's efficiency and achievement of an organization. This study investigates the relationship between EFL teachers' emotional intelligence and their job satisfaction in private language institutes in Iran/Shiraz. This study also seeks to answer whether there is a significant difference between emotional Intelligence and job satisfaction of Iranian's EFL teachers in terms of gender.