According to the regulations of the National Scholarship Fund Committee, it is generally not necessary to pay tuition fees to participate in overseas exchange programs of colleges or the National Scholarship Fund Committee. However, if you participate in the doctoral degree program, you may have to pay tuition fees or registration fees, which are funded by the National Scholarship Fund Committee according to the specific regulations of foreign universities.

I want to apply for overseas exchange during my PhD, and there are some funding channels to apply, mainly the following:

1. Projects supported by National Scholarship Fund Committee: You can apply for CSC projects, including imported projects, dispatched projects and academic exchange projects. And you can get some funding.

2. Scholarships provided by specific governments, institutions and schools: you can apply for some specific scholarship projects, such as Sino-foreign cooperative scholarship projects and China-Europe postdoctoral scholarship projects.