The Graduate Institute of Astronomy, established in 1992, was the first institute of astronomy in Taiwan, with the goal to cultivate research and education scholars in astronomy. The Institute offers the most complete and rigorous curriculum of astronomy and astrophysics, with all courses run in English and at international standards. Core courses include Stellar Structure and Atmosphere, Stellar Formation and Evolution, Galactic Astrophysics, Large-scale Structures and Cosmology, Observational Astronomy, Theoretical Astrophysics. In addition, there are advanced selective courses in radio, X-ray, and high-energy astrophysics, variable stars, interstellar medium, and solar system astrophysics, comets and asteroids with emphasis on theories and hands-on training on computer programming and instrumentation. Our faculty and students are actively involved in international consortiums such as LSST、ZTF and ALMA, and make competitive use of the most advanced observing facilities worldwide, in compliment to the telescopes at Lulin Observatory operated and used by the Institute, to conduct forefront research topics.