The institute has long been committed to fostering international collaboration and academic exchange. It has developed long term and solid partnerships with numerous research institutions, universities and international organizations worldwide. These collaborations are realized through a variety of initiatives, including the signing of bilateral agreements, the establishment of joint laboratories, the organization of international symposiums, and the facilitation of personnel and student exchanges. 

To further strengthen and expand its global networks, IOP founded the Center for International Collaboration (CIC) in 2010. Each year, the institute welcomes approximately 500 international visitors, while around 700 IOP researchers and students travel abroad for collaborative projects and academic exchanges. Among the visitors many are renowned scientists, including Nobel laureates, who are invited to share their insights through IOP's prestigious lecture series. These include the “Daniel C. Tsui’s lectures”, the “Zhongguancun Forum”, and the CIC Lectures. Additionally, IOP promotes in-depth collaborations by inviting overseas scientists to spend their sabbaticals at the institute. The institute also organizes high-level international conferences and workshops on a regular basis.