This study investigates the impact of university teachers' professional ethics on the academic achievements of their students. Employing a descriptive research design and utilizing survey methods, the study focuses on graduation-level education at the University of Okara, Punjab. The population of the study encompasses students enrolled at the University of Okara, necessitating the use of convenient sampling techniques due to its size. Eight departments, including Botany, Chemistry, Education, English, Information Technology, Management Sciences, Mathematics, and Zoology, were selected for data collection. A self-developed Professional Ethics Rating Scale (PERS) was employed to measure the ethical conduct of teachers. The scale's validity was confirmed through expert opinion, and its reliability coefficient was determined to be 0.79. The study revealed a significant relationship between teacher ethics and student achievement. The findings underscore the importance of ethical conduct among university teachers and its profound influence on student academic performance.