IOP is the leading research institute in China in condensed matter physics and related fields. Through 90 years of development, IOP has become a comprehensive and multi-disciplinary research organization engaged in research on basic and applied physics. Its current research activities concentrate on condensed matter physics, optical physics, atomic and molecular physics, plasma physics, soft matter physics, and condensed matter theory and computation physics. There are 12 laboratories and 8 centers in our research system together with a strong technical support system. In 2017, IOP was officially designated as the Beijing National Laboratory for Condensed Matter Physics. More Information about IOP can be found at www.iop.cas.cn. By the end of 2018, IOP had a total of 731 staff, including 307 of scientific research, 150 of technical support, and 60 of administrative duty. IOP has 14 academicians of Chinese Academy of Sciences, and 1 academician of Chinese Academy of Engineering. Among IOP researchers, 37 obtained the National Outstanding Youth Foundation Grants. Currently, IOP has 918 graduate students and 100 post doctorate fellows. Since 1978, IOP researchers have won 300+ awards, including 8 physics awards of the Third World Academy of Sciences, 1 National Top Award for Science and Technology, 30 National Awards for Natural Sciences, 24 National Awards for Science and Technology Progress, and 9 National Awards for Technological Inventions. Apart from the current ZhongGuanCun campus, which is focusing on fundamental research, IOP will soon have three more campuses opening, that is, HuaiRou campus (in HuaiRou Science City, suburban Beijing) to develop large scientific facilities and interdisciplinary research centers, LiYang campus (in Jiangsu province) to undertake science commercialization and academic exchanges, and DongGuan campus (in Guangdong province) to develop the Songshan Lake Materials Laboratory.