The findings in the initial study found that one of the causes of the low performance of health services in hospitals is the lack of supervision of the work of nurses in carrying out office duties during working hours at the hospital. Supervision in question is the supervision activity carried out by the appointed work supervisor, to supervise the implementation of tasks that are the responsibility of the nurse in the hospital. The purpose of this study was to determine the effect of supervision on nurse performance at the Bahteramas General Hospital. The type of research used is quantitative research using a cross sectional study design. The size of the population in this study were 209 people, with a sample size of 138 respondents. As for the method of data collection, it was carried out using interviews and field observations. Implementation Data analysis was carried out using Univariate and Bivariate methods. The results showed that there was an effect of supervision on the performance of nurses at the Bahteramas Regional General Hospital with a p (0.000 <0.05). Conclusion; monitoring variables affect the performance of nurses. Suggestion; The need to increase regular and periodic supervision to ensure that every work that has been done by nurses is in accordance with procedures set by the hospital.