Emotional intelligence plays a very important part in creating effective decisions in day to day life within the work place. The ability to deliver safe and proper care is relies on make accurate decision. Strong emotions help head nurses to make effective decisions. Aim: The present study aimed to assess the effect of emotional intelligence program on decision making style for head nurses'. Research Design: quasi experimental design was utilized. Study Setting: the study was conducted in all units at Benha University Hospital. The study sample was: all the available head nurses (57) from the above mentioned setting. Tools of data collection: Three tools were used: (1) emotional intelligence knowledge questionnaire, (2) Standardized emotional intelligence questionnaire, and (3) Nursing Decision-Making Instrument Scale Revised, 2014 (NDMI). Results: The findings of this study showed that there was a highly statistical significant improvement in the level of emotional intelligence and decision making style among head nurses through the program. Conclusion: The study concluded that highly statistically significant correlation was found between emotional intelligence and decision making style among head nurses. Recommendation: Hospital should provide continuous emotional intelligence training program to nursing staff to enhance their performance, Integration of emotional intelligence program in to nursing curricula for enhancing nursing students' competencies.