The purpose of this research is to determine and analyze the influence of supervision on employee performance at PT. Persada Technique. This research was conducted using a causal associative quantitative approach. The sample used was all company employees, with a total of 61 people. The research results show that supervision has a positive and significant effect on employee performance. This is shown by the T-count value of 3.193 which is greater than the T-table 11.818 > t table 1.67109, with a significance value of 0.000 < 0.05. The regression coefficient shows that if supervision is increased by 1 unit, employee performance will increase by 1,709 units assuming other variables remain constant. Apart from that, the results of the determination test show an Adjusted R Square value of 0.698 or 69.80%, which indicates that supervision has a low influence on employee performance, while the remaining 30.20% is influenced by other factors that have not been studied. Thus, partially, supervision has a positive and significant effect on employee performance at PT. Persada technique. This identifies that, meaning, improvements in Supervision can contribute to improving employee performance.