: Good Corporate Governance Implementation to Increase the Quality of Service Good Corporate Governance (GCG) in PT Telkom has become necessity, because when it applied, companies must have good service quality. This study was conducted to analyze and determine Good Corporate Governance Implementation to Increase the Quality of Service in PT Telkom Banyuwangi. Based on the aims of study, it using descriptive method in qualitative approach. The results of this research showed that PT Telkom divide the implementation of Good Corporate Governance in five groups which based on the five principles of Good Corporate Governance, that is: Transparency, Independence, Accountability, Responsibility, and Fairness. Furthermore, the implementation of Good Corporate Governance, Telkom show efforts to improve quality of service to satisfying their customers with SLG (Service Level Guarantee) system, competency management and development of human resources, Developing Distribution of service and Product, and the development of facilities and infrastructure, governance of TI that already good. However, the implementation of Good Corporate Governance in PT Telkom Banyuwangi depends of the competence of human resources availability and lack of information about the importance of Good Corporate Governance for PT Telkom Banyuwangi. From these results, the authors can draw the conclusion that good corporate governance has been implemented properly in accordance strengthening the application of the principles of Corporate Value (corporate values) and the authors provide suggestions for PT Telkom Banyuwangi that have implemented good corporate governance is necessary in order to better socialization and development of employee knowledge about GCG evenly on employees.