ABSTRACT THE RELATIONSHIP BETWEEN WORK POSTURE AND MUSCULOSKELETAL DISORDERS AMONG WORKERS OF THE CWI 01 ITS PACKAGE CONSTRUCTION PROJECT Dinar Naufal Ghoozi AL-Harris NIM.422021731004 Construction workers of the CWI-01 Construction Project are at a higher risk because construction work generally involves activities performed manually. Manual hauling work usually involves pulling, pushing, carrying, and lifting goods in a way that can create pressure when loading or unloading goods. Hazards or risks caused by ergonomics can be acute and result in MSDs complaints. The purpose of this study is to analyze the Relationship between Work Posture and Musculoskeletal Complaints among Workers of the CWI-01 ITS Package Development Project. The type of research used is quantitative research with a correlational analytical approach. The population in this study is construction workers of 120 workers. The sampling method used in this study is using the Slovin formula, which is the selection of stratified random sampling of 55 respondents. The instrument used to measure work posture is Rapid Entire Body Assessment and to measure MSDs complaints, namely using the Nordic Body Map. After the chi square test was carried out, it was shown that respondents who experienced MSDs with moderate complaints were more felt by respondents with a high-risk work posture, namely 24 respondents (43.6%). MSDs with high complaints by respondents with a moderate risk work posture were three respondents (5.5%), and very high risk was only one respondent (1.8%). Based on the results of the statistical test showing a p-value of 0.405 > 0.05, Hypothesis was accepted so that there was no significant relationship between Work Posture and MSDs Complaints in CWI- 01 Project workers. Keywords: Construction, Musculoskeletal Complaints, Nordic Body Map, Rapid Entire Body Assessment, Work Posture