This research aims to know: (1) Islamic religious teachers’ performance at SMA (Senior High School) Muhammadiyah 5 Yogyakarta; (2) grade XI students’ learning result of Aqidah (mattes of faith) and Akhlaq ( the practice of virtue, morality and manners) subject at SMA Muhammadiyah 5 Yogyakarta; (3) the effects of religious teachers’ performance on grade XI students’ learning result at SMA Muhammadiyah 5 Yogyakarta. This is a descriptive quantitative research using a simple linear regression model with quantitative approach. The total population of the research was 117 students. The sample of the research was 60 students selected through random sampling technique. The data of the research were then analyzed descriptively using Anova test, simple linear regression model, and hypothesis test. The findings of the result show that : (1) The Islamic religious teachers’ performance is in high category that is 50% in the aspect of professionalism; (2) The grade XI students’ learning result of Aqidah and Akhlaq subject is in medium category that is 53, 3 %; (3) there is a significant effect of Islamic religious teachers’ performance on the grade XI students’ learning result of Aqidah and Akhlaq subject at SMA Muhammadiyah 5 Yogyakarta that is 5 % influenced by pedagogic, social, personality factors, while 95 % is influenced by professionalism aspect.