Introduction: The ability of nurses to conduct triage greatly influences the success rate of help when patients expe- rience emergency. The aim of the study was to determine the factors associated with the accuracy of the implemen- tation of triage in the X Hospital's Emergency Departments. Methods: The research method that the researcher used was cross sectional approach. The number of samples were 32 respondents. Questionnaire and observation were used to collect the data. Results: Respondents characteristics (age, sex, education, and tenure) with the accuracy of the triage were obtained by age with p value = 0.386, p value = 1,000 for gender, p value = 0.242 for education, and years of work with p value = 0.000162. Knowledge of respondents with the implementation of the determination of triage p value = 0.045 and motivation of respondents with the accuracy of the implementation of triage p value
= 0.0017. Conclusion: The accuracy of the implementation of triage has no relationship with characteristics (age, sex, education), there is a relationship between knowledge, motivation and years of work with the implementation's accuracy of triage in the Emergency Room X Hospital. Suggestions are expected by the Hospital to make guidelines, triage algorithms, training, regeneration to improve nurse triage knowledge.