Background: The World Health Organization (WHO) describesoccupational injury as anrnepidemic problem in the field of public health in underdeveloped countries.An occupationalrninjury is defined as any personal damage or loss of human life due to the consequences of anrnoccupational accident.Work-related injuries are significantly associated with various factorsrnincluding employing young workers, low literacy workers, low work experiences, and not usingrnPPE.rnObjective: This study aimed toassess prevalence of occupational injury and associated factorsrnamong building construction workers in Addis Ababa, Ethiopia 2021.rnMethods:A cross-sectional study was conducted in selected construction sites governed underrnAddis Ababa administration construction office in Addis Ababa city, Ethiopia.Data wererncollected via face-to-face interviews. The collected data wereentered using the epi data versionrn4.2.0 and exported to SPSS version 26 for further analysis and interpretations.Bothbivariate andrnmultivariate logistic regression analysis wereperformed to see the association. P-value less thanrn0.05 was considered statistically significant and finally, the result of the study was presented byrnusing texts, tables, and figures.rnResults: Out of the total 220 study participants, 88(40%) workers reported occupational injuryrnduring the past 12 months and the main causes of injury were struck by an object 24(27.2%), andrnfalling at ground level 23(26.1%). Workers who had employed temporarily 2.6 times high riskrnfor occupational injury than those of workers who had employed permanently (AOR [95%)=2.694[1.021, 7.104]). Workers who have less than two years’ experience were 2.8 times highrnrisk for occupational injury than those of workers who have greater than two years (AORrn[95%]= 2.892[1.468,5.697]). Workers who work greater than 48 hours per week 2.3 times morerninjured than workers who work less or equals to 48 hours per week (AOR [95%]=rn2.346[1.345,4.092]).rnConclusion and recommendation: This study finding showed that there is highoccupationalrninjury and this might be due to lack of work experience, prolonged working hours per week.So itrnis recommended that occupational health training to all construction workers and limiting working time to less than 48 hours per week will havegreater effect to reduce occupationalrninjury.