This study aims to know and analyze the relationship of leadership principal teaching and work discipline to student academic achievement in school. This research uses quantitative method, the data is analyzed by using descriptive statistic and inference. Data collection using instruments, instruments compiled from various sources tailored to the research method used. The study was conducted on teachers in elementary schools in Jakarta. The study shows that there is a positive and significant correlation between the principal's teaching leadership and the students 'academic achievement with the correlation correlation value of 0.454, there is a significant correlation between the teacher's work discipline with the students' academic achievement with the correlation value of 0.576. From the results of the study can be concluded that the improvement and improving the quality of student achievement can be done with the improvement and improvement of the leadership quality of teaching the principal and the discipline of teacher work. Student achievement can develop well with the help and touch of a principal through good school management, as well as the discipline of a teacher in carrying out his work as an educator so that will provide a good quality of learning process also with the expected achievement of student learning achievement high in school. Keywords. Leadership Teaching, Principals, Teachers Dicipline, Academic Achievements.