Introduction. In recent years, the Task-Based Teaching Method (TBTM) has gained recognition as an effective approach to teaching English for Specific Purposes (ESP) in higher education system in Uzbekistan. This method emphasizes learning through tasks that are meaningful and relevant to students, allowing them to develop language skills in real-world contexts. The implementation of TBTM in ESP groups has brought about significant changes in the way English is taught and learned in Uzbekistan, contributing to the overall improvement of language acquisition among students. The purpose of the article is to analyze and identify the significance of Task-Based Teaching Method as a beneficial approach for ESP students in acquiring foreign languages efficiently at universities. Study participants and methods. The research involved 111 students (54 students in 2022 and 57 students in 2023) who were enrolled in the faculties of Economics and Pedagogy at the University of Economics and Pedagogy to test the importance of Task-based teaching method on acquiring foreign languages. This university is one of the most prestigious universities in Uzbekistan which carries out immense research activities. A total of 111 undergraduate (freshman and sophomore) students took part in the observation, analytical and experimental researches which were applied for assessing the effectiveness of the Task-based teaching method in ESP groups. Results. The result precisely indicate that Task-based teaching method which emphasizes the use of authentic, meaningful tasks as the primary focus of instruction, has been recognized for its ability to enhance learners' language proficiency and prepare them for real-world communication. In 2022, 47 (87%) of the total 54 students of the Faculty of Economics, who were taught English using the Task-based teaching method, obtained the upper intermediate B2 level. And according to the results of our research conducted in 2023, a total of 49 (85 %) of the 57 students of the Faculty of Pedagogy who participated in our research reached the upper intermediate level thanks to our use of the Task-based teaching method in the framework. Based on the results obtained from the conducted research, we can undoubtedly convey that TBTM is highly fruitful in all levels of ESP groups in educational process. Conclusion. In conclusion, the Task-based teaching method has proven to be a valuable approach in promoting foreign language acquisition in ESP groups in higher education universities in Uzbekistan, particularly in the context of English. By emphasizing meaningful tasks, authentic communication, and real-world application, TBTM can enhance students' language proficiency, communication skills, and readiness for academic and professional success. While there may be challenges and criticisms associated with TBTM, the potential benefits far outweigh the drawbacks. Moving forward, further research and development in the field of TBT in ESP groups can help optimize language learning outcomes and provide holistic language education for students in Uzbekistan.