The use of Information and Communication Technology (ICT) in teaching and learning process has an important role as a tool to support the learning process on this era. The use of ICT also involved in English for Specific Purpose instruction (ESP). This research aims to investigate the kind of ICT applied and how they are used, the advantages, and also to discover the challenges faced by the lecturer in using ICT in English class of Physics and Chemistry Study Program of Lambung Mangkurat University. Descriptive qualitative method used in this study. Observation and interview used to collect the data. The subject of this study was a lecturer who teaches English in Physics and Chemistry Study Program of Faculty of Teacher Training and Education in Lambung Mangkurat University. The study found the types of ICT used in the lecture were (1) hardware, namely a laptop, projector, speaker, and smartphone, and (2) software, namely Microsoft Office (PowerPoint), Quizizz, WhatsApp, and a learning management system (SIMARI). The advantages of the used ICT in English teaching and learning include increased student engagement, efficient time management, enhanced motivation, and active student participation, contributing to a more dynamic and effective learning environment. some obstacles that found namely, lack of time to prepare ICT-based teachings due to the lecturer's internal time management factors, unstable internet connection and limited internet quotas for students. Teachers can use applications like Padlet, Duolingo, and TED talks to enhance English learning skills. However, they must monitor and evaluate ICT usage, paying attention to students' responses, technical difficulties, and learning objectives. To overcome network constraints, time management, and limited internet quotas, lecturers can provide offline resources, government subsidies, and cooperate with service providers. ICT Usage Planning and preparing materials in advance maximize time usage and avoid lost valuable time.