Nanjing Astronomical Science Institute was founded in 1958 and is affiliated to the Chinese Academy of Sciences. It is one of the earliest research institutes for astronomy and astrophysics in China. It has made important contributions to the development of astronomy in China, and has trained a large number of outstanding scientists in the field of astronomy and astrophysics. It consists of the Institute of Astronomy, the Institute of Astrophysics, and the Institute of Space Science and Technology. Its research covers a wide range of fields such as astronomy, astrophysics, space science and technology, and astronomical instrumentation. In recent years, it has actively carried out international cooperation and exchanges, and has maintained friendly cooperative relations with many foreign institutions and universities.