Background: Organizations are undeniable aspect of modern world and human force is the first and most important part of an organizational system. Professional ethics among other things are values that employees without them willingly or unwillingly can't do their jobs correctly and with productivity. This research intends to offer and explain the correlation between two variables of emotional intelligence and professional ethics.
Method: This research is a descriptive- correlation study. The statistical population of interest includes all of 3700 employees of "Shazand Petrochemical Company". We determine a sample size of 350 people by the use of Morgan sample size table. Data were gathered by standard questionnaires; emotional intelligence and professional ethics. To determine normality or abnormality of variables distribution, we use Kolmogorov–Smirnov test. The findings of mentioned test indicate that variables distribution is abnormal. Therefore, we used Spearman's correlation coefficient.
Results: Research findings show that there is a significant and positive correlation between emotional intelligence and professional ethics. Also, there is a positive and significant correlation between components of emotional intelligence including: self-awareness, self-control, concord, social skills and self-motivation with professional ethics of employees.
Conclusion: Emotional intelligence has many advantages for organizations through self-management and managing others and causes employees' professional ethics to improve.  Therefore, an organization can benefit from emotional intelligence to improve employees' professional ethics and promote their performance in organization.