Syamsudin Noor International Airport Access Road Construction Project is a road infrastructure development with a 2.78 Km long work route that has the possibility of work accidents. This is due to the relatively long work location and direct contact with the community. Therefore, to reduce the number of work accidents, it is necessary to pay special attention to the field of Construction Safety Management System (CSMS) in the work environment. Data were collected through observation and distribution of questionnaires to ten respondents, then the data were processed using the SPSS 26 program. The results of the analysis of the implementation of the construction safety management system in the Syamsudin Noor International Airport Access Road Construction Project have been running well. However, in its application there are still obstacles caused by the factor of lack of safety awareness, the factor of the absence of strict sanctions for violators of Occupational Health and Safety (OHS), and the factor of workers feeling uncomfortable when using personal protective equipment. Also, it is known that the influence of variable X (CSMS) and variable Y (CBP) is 89.5% based on the coefficient of determination (Adjusted R Square).Keywords: Construction Safety Management System, Cost Budget Plan.