Graduation thesis doesn't need to be stamped, it belongs to personal work, so correspondence graduation thesis doesn't need to be stamped.

Extended information: Correspondence education is a kind of adult college entrance examination education, which mainly refers to the learning methods such as school mailing textbooks to students and students mailing homework and test papers to schools. There are three ways to learn: from high school to junior college, and from high school to undergraduate and junior college. Adult college entrance examination has full-time, half-day, correspondence, night university and other forms. Correspondence can be in the form of concentrated study on Saturday and Sunday, or in the form of concentrated study for one or two months every year and taking time off for study at other times. Students who graduate by correspondence receive correspondence education, which is recognized by the state as adult education.