Introduction: Knowledge management is very important for achieving a powerful organizational performance. The success or failure of knowledge management depends on how the organization's members share and use their information effectively. The aim of this study was to determine the relationship between knowledge management and emergency nursing function.
Methods: This descriptive-analytic study was performed on 230 nurses working in the emergency department of educational centers in Rasht city in 2017. Samples entered the study through census. Data collection tools include demographic information questionnaire, functional measurement scale and knowledge management index  that were valid. Data were analyzed using descriptive statistics and inferential statistics (Spearman correlation coefficient and logistic model ) in SPSS.
Results: The mean and standard deviation of knowledge management was 2.06± 0.54  and the performance of emergency nurses was 2.99 ± 0.57. The results of Spearman's correlation coefficient showed that there was a positive and significant relationship between knowledge management and the performance of emergency nurses.  (P= 0.0002 and r=0.198). There was no significant relationship between nurses' performance sub-scales (competence, attitude, desire to improve and use nursing process) with knowledge management (p <0.0001).
Conclusion: Effective nursing requires professional skills. In order to have a higher performance of a nurse, there is aneed to identify and share knowledge and experience of the nurses in the organizations. Therefore, effective management of nursing knowledge is vital for improving its performance outcomes. The results of the study can contribute to the development of efficient and effective knowledge management systems to enhance the culture of knowledge sharing and organizational learning that leads to improved productivity.