This study aims to analyze the direct and indirect influence between the principal's transformational leadership, work culture and teacher work commitment on teacher performance at SMPN Banjarbaru City. This research is a descriptive correlation with a quantitative approach which is formulated into a path analysis model. The research population was 407 teachers from 14 schools and 202 respondents were taken as research samples using proportional random sampling technique. Collecting data using a questionnaire instrument and data analysis using descriptive analysis, classical assumption test, and hypothesis testing and path analysis. The conclusion of this study is that there is a significant direct relationship between transformational leadership, work culture and work commitment with teacher performance. There is an indirect relationship of transformational leadership through work commitment to the performance of Banjarbaru City Junior High School teachers. There is an indirect relationship between work culture through work commitment and the performance of SMPN Banjarbaru City teachers.