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The activity of riding motorcycle is closlely related to the risk of ergonomic. Continous riding motocycle every day poses a risk to motorcycle rider experiencing mussculoskeletal disorder (MSDs). Despite of working related factor, individual factors and habbit also contribute to cause muskuloskeletal disorder (MSDs). This Study amis to know the the level of ergonomic risk and subjective complaints MSDs on ojek online driver in Depok city. In total 150 ojek online drivers were observed using Rapid Entire Body Assessment (REBA) observational tools. This study also use Nordic Body Map (NBM) questionnaire to obserb the part of body which complainned of musculoskeletal disorder. The variabels studied in this study were an ergonomic risk, age, gender, working period, duration of work, smoking habit, exercise habit, milliage, and subjective complaint of MSDs. This study use cross-sectional desing with univariat and bivariat statistical test to analyze the frequency distribution and the corelation each variables. The result of this   study showed that 96,1% of ojek  online driver in Depok city had any  Musckuloskeletal disorder subjective complaint, most complained body parts by ojek online drivers  arelow back, neck and shoulders . Statistical test show that there was correlation among exercies actifity(OR = 10,688 p = 0,007), Working period (OR = 6,636 p = 0,000), duration of work (OR = 5,438 p = 0,000), smoking habbit (OR = 5,104 p = 0,000), milleage (OR = 3,434 p = 0,000) to musculoskeletal disorder subjective complaints.