Background: Trauma is the leading cause of mortality in young adults. Many such deaths are preventable if patients are treated effectively. The term "golden hour" is commonly used to characterize the urgent need for the care of trauma patients. This study aimed to evaluate the effect of implementing an educational program on nurses' performance regarding Traumatized patient during the Golden hour in emergency room at Zagazig University Hospital. Subjects and Methods: Research design A quasi experimental design was utilized. Setting The study was conducted at the emergency departments of Emergency Hospital at Zagazig University. Subjects: Fifty Emergency nurses. Tools of data collection Four tools were used for collection of data, First questionnaire to collect demographic characteristics of study nurses and questions to assess nurses' knowledge regarding trauma patients during the golden hour of care. Second tool was an observational checklist to assess nurses' practice. Third tool to assess the nurse's attitude. Four tool to assess the opinion of nurses. Results there was statistical significant difference in study phases were found in nurses' knowledge and their practices throughout program phases. Total nurses knowledge in pre-program (72%) unsatisfactory as well as in post-program (100%) satisfactory, and follow up (88%)satisfactory, Total nurses practices in pre-program phase(100%) unsatisfactory, as well as in post-program (100%) satisfactory and follow up (78%) satisfactory, Total nurses attitude in pre/post and follow up phases (100%) satisfactory. Conclusion: The Education Program had Positive effect on nurses performance regarding Traumatized Patient care during golden hour, there were statistical significant differences between nurses knowledge and practices regarding to traumatized patient during golden hour in emergency department after program implementation either immediately or three month later. Recommended: Development of Training Program should be conducted periodically for nursing staff in EM; Hospitals should develop evidence based guidelines on Traumatized patient.