The traditional face-to-face learning approach, which has been practiced for centuries, is gradually being replaced by a new learning approach. Today's technology and research in the field of educational sciences show that the use of the Internet and information technologies in the field of education will have a direct impact on students' achievement and attitudes. Within this context, this study aims to examine the effect of online teaching approach on the achievement, attitude towards poetry and learning retention of university students on the subject of 'Abai Qunanbaiuly Poems' in Kazakh Language Literature course. For this purpose, pretest-posttest model with control group from quasi-experimental models was used in the study. In the study, the subject of 'Abai Qunanbaiuly Poems' in the experimental group was taught by online teaching method and the same subject in the control group was taught according to the instructions of the existing curriculum. The study was conducted on a total of 60 students in the Kazakh Language and Literature department of a university in Almaty. Academic Achievement Test and Attitude Scale towards Poetry were used to collect data. According to the findings of the study, it was found that the online teaching approach increased students' achievement, attitudes towards poetry and learning retention at a high level compared to the current curriculum-based education. Therefore, as a result of the research, it was revealed that online learning positively affects students' academic achievement, attitudes and learning retention in Kazakh Language Literature course and recommendations were developed in this context.