Ergonomic risk assessment in office workers of summit auto body industry co.,ltd. The objective of this research were to study the risks ergonomics of the work of the office staff in summit auto body industry co., ltd. The sample used is office staff 15 departments number 51 person specific sampling of define criterion select 1) agree join the research and from random 2) work period screen computer four hours or more 3) no congenital disease about bone system or diseases musculoskeletal system tools used in research include general information questionnaire and risk assessment from working with ergonomic with rosa the data collected and the results are statistically percentage and average.