Background: Triage is an essential function in emergency department. As there are increasedrnnumbers of clients with life threatening traumatic injuries and non-traumatic cases in thernemergency department in Ethiopia, triage skill and knowledge is an essential competencyrnrequired for the nurses working in emergency department. Triage nursesâ€™ knowledge has beenrncited as an influential factor in triage decision-making, however there have been no study inrnAddis Ababa hospitals undertaken to assess the knowledge and skills of triage among nursesrnworking in the emergency departments. This study therefore aimed at assessing knowledge andrnskills of triage among nurses working in the emergency departments in Addis Ababa governmentrnhospitals.rnObjective: To assess the level of triaging skills and knowledge possessed by emergency nursernand associated factors at government hospitals in Addis Ababa from October 2015 to June 2016.rnMethods: An institutional based cross-sectional study design was used for this study. Samplernsize was calculated by using sample correction formula and sample size of 197 Emergencyrnnurses was obtained. The study participants were recruited using simple random sampling,rnlottery methods. The data was collected using standardized instrument. The collected data wasrncoded and entered to window based statistical package for social sciences (SPSS) versionrn22.0.Person correlation and multivariable linear regression was used to analysis the factors.rnResults: Response rates of 95.4% were obtained from the study. More than half of thernparticipants (51.9%) were female and Orthodox religion follower accounts for 45% ofrnrespondents. Nearly half of the respondents (54.5%) had low triage knowledge scores, with thernmean score being 20.71 (SD = 5.06). Greater than half of the subjects (52.9%) perceived theirrnoverall triage skill to be at a moderate level 141.3 (SD = 20.87). strong, positive relationshipsrnwere found to exist between triage skill and triage knowledge (r = .68, p < .01) while moderaternpositive relationship exist between triage skill and the three other factors. There is significantrnrelation between triage knowledge and triage skill (B=0.069, CI= (3.853, 15.724), P=0.001).rnConclusion and Recommendation; This finding suggests there is high inadequacy of trainingrnand low knowledge among nurses working in emergency department. Hence they needrncontinuing education and training in order to improve their triage skill and triage knowledge.rnKey words: triage skill, triage knowledge, work experience, training experience, triagernexperience, emergency nurse