Performance is any process that can benefit organizations that produce quantity and quality, copyright, ease, and speed in self-adjustment. The principal's leadership style, work culture, teacher competency, job satisfaction allegedly affect the teacher's performance. This research aims to describe the influence of the principal's leadership style, work culture, teacher competency, and job satisfaction on teacher performance in special schools in Banjarbaru City. This research is a quantitative study using regression techniques with five variables, namely principal leadership style (X1), work culture (X2) as a free variable, teacher competency (Z1), job satisfaction (Z2) as an intervening variable (between variables), and teacher performance (Y) as bound variables. The data were collected through a questionnaire from 86 samples. Data analysis was conducted using the SPSS 24 for windows. The results showed a significant influence between the principal's leadership style, work culture, teacher competency, and job satisfaction in Banjar Baru special schools. This research recommends that teachers be more active and creative to improve their performance and create a great organizational culture.