Ethics or morality plays an important role in everyday life. Family disharmony, weak personality and self-control, unhealthy mental attitudes, disappointment, the influence of social media, and economic pressure can influence low ethics. This research aims to determine the influence of learning outcomes in the Akidah-Akhlak subject on student ethics at MA Al-Khairiyah in Mampang Prapatan, South Jakarta. The quantitative research approach uses survey methods for data collection through questionnaires and documentation. Data analysis includes descriptive analysis, testing analysis prerequisites, and hypothesis testing. The results of the research show that the learning outcomes of the Akhlak creed subject have a significant influence on the formation of student ethics, with a variance of 54.8%. The remaining 45.2% is influenced by other variables not examined in this research. A significance level of 0.000 (<0.05) indicates that there is quite a large influence between learning outcomes and ethical development related to moral belief subjects.