Problems in improving teacher professionalism include teachers' low motivation to improve their abilities due to age, inability to use information and lack of enthusiasm for competition. Teachers feel more comfortable without having to bother following efforts to increase professional competence. Under these
conditions, efforts are needed to improve teacher competency through the management Quality Control Circle (QCC). This research aims to obtain an overview and analysis of management QCC to improve the professional competence of MTsN teachers through a qualitative research approach using the case study method. To discuss research findings using quality assurance system management theory using the PDCA (Plan, Do, Check Act) cycle. Spencer's Competency Theory is a characteristic that underlies a person and is related to the effectiveness of an individual's work in their work. Data sources were obtained through observations, documents and interviews with Madrasah Principals, Deputy Madrasah Principals, Teachers and School Committees and Supervisors at MTsN 1 and MTsN 2 in Palangka Raya City. The results of this research found that QCC planning had been carried out by pursuing ideal planning principles but was not yet optimal. The implementation of QCC pays little attention to quality management aspects. QCC evaluation does not pay enough attention to the success of teachers' professional competency measures. QCC follow-up is still faced with obstacles to the consistency and cohesiveness of the QCC team.