The purpose of this research was to determine and analyze the influence of Work Environment, Discipline and Teacher Professional Allowance on the Performance of Teachers in Madrasah Aliyah Negeri 3 Tapanuli Selatan, both partially and simultaneously. The sample in this research were all employees, amounting to 35 teachers. Determination of the number of samples using a saturated sample (census). The analysis technique used is descriptive analysis method and multiple linear regression analysis with SPSS 20.00 for windows. The results showed that :1) Work environment had a positive and significant effect on the performance of teachers in Madrasah Aliyah Negeri 3 Tapanuli Selatan; 2) Discipline has a positive and significant effect on the performance of teachers in Madrasah Aliyah Negeri 3 Tapanuli Selatan; 3) Teacher professional allowance has a positive and significant effect on the performance of teachers in Madrasah Aliyah Negeri 3 Tapanuli Selatan; 4) Work environment, discipline and teachers professional allowance has a positive and significant effect on the performance of teachers in Madrasah Aliyah Negeri 3 Tapanuli Selatan. Work environment, discipline and teacher professional allowance have the ability to explain its effect on the performance of teachers variable of Madrasah Aliyah Negeri 3 Tapanuli Selatan at 59.0%, while the remaining 41.0% is the influence of other independent variables not examined in this research.