The Chinese Academy of Sciences (CAS) offers a package of international fellowships, collectively called the "CAS President's International Fellowship Initiative (PIFI)", to support highly-qualified international scientists and postgraduate students to work and study at CAS Institutions and strengthen their scientific collaboration with CAS researchers. The PIFI program is available for four categories of International researchers and students:
- Distinguished Fellowship
- Visiting Fellowship
- Postdoctoral Fellowship
- PIFI International PhD Fellowship.