Employees are a very vital asset for an organization. Because the achievements they achieve greatly affect the effectiveness of the organization's overall performance. Therefore improving employee performance is the main focus of the human resource management unit. This study aims to determine whether supervision and work facilities affect employee performance through job satisfaction as an intervening variable at the Regional Inspectorate of Labuhanbatu Regency. The study was conducted on 62 employees using a saturated sampling technique. The data collection technique used was primary data in the form of questionnaires and secondary data obtained through documentation studies. The data analysis technique used quantitative data which was processed using the SPSS version 25 program, namely the t test, Sobel test and path analysis. The results obtained in this study show 1) there is a significant influence between supervision on job satisfaction, 2) there is a significant effect between work facility variables on job satisfaction, 3) there is a significant effect between supervision variables on performance, 4) there is a significant effect between facility variables work on performance, 5) there is a significant influence between job satisfaction variables on performance, 6) job satisfaction variables cannot influence monitoring variables on performance, 7) job satisfaction variables cannot influence work facilities variables on performance.