ICT is the outcome of technological development in the present world scenario. It is the combination of application-based technology and theoretical approach of the educational contents. The modern world is growing day by day; technological development became an emerging challenge for society from the mid of the 20th century. It is widely used for the teaching practices and promotion of education. Teachers used ICT to make their teaching simple, easy and access able for the students. It facilitates education because it provides more opportunities and platforms to the teachers in Pre-service as well as In-service teaching programme. In this paper, the researchers want that how ICT is useful for teacher education and what is the need of it to promote better teacher education in the 21st century. Along also highlighted the importance of ICT in the modern education system of teacher trainees. This research considered various studies as a secondary source for the conduction of this study and a descriptive approach used to determine the sources.