The recent science technology tends to be rapidly converting from basic theory to applied theory. The College of Applied Science is striving to foster experts, who can apply the knowledge of basic science theory to the industry with understanding. Meanwhile, the college focuses on the new growth engine industry which has now become the prime mover of the development of Korean science and technology. The College of Applied Science consists of 4 departments; Applied Mathematics, Applied Physics, Applied Chemistry and Astronomy & Space Science. Each of these departments provides various courses with experiments and practices based on mathematics which is essential for all science and engineering. Not only have we made some outstanding accomplishments in the field of space technology indispensible in the current 21st century, but also broadened the understanding of applied science as a merged study formed with characteristic education and connection between each major.