Education reserve (also called mortgage loan) is actually a special tuition fee paid by students to the school. The difference between it and ordinary tuition is that students (parents) pay a large sum of money (generally about100000 yuan) to the school at one time according to the written agreement or oral agreement with the school. Schools use the interest generated by this fund to offset students' tuition fees, and some pay funds ranging from several thousand yuan to tens of thousands of yuan, and pay tuition fees in addition. The reservation is for students.