The aim of this study illustrate ts M utu Management System (QMS) ISO 9001: 2015 and know how to resolve obstacles that arise in SMM realization in Vocational High School Yappi Wonosari Gunung Kidul Regency. This research is a descriptive study with a qualitative approach. Research data was collected through interviews, documentation, and observation. The results of the study show: 1) The application of elements of focus on customers, leadership, engagement of people, process approach, improvement, evidence-based decision-getting , and relationship management is good enough; 2) The positive impact of the implementation of QMS is to improve school performance so that it has an impact on the satisfaction of parents; 3) How to maintain and overcome obstacles from the implementation of QMS by controlling school quality internally and externally.
Keywords: implementation, quality management system