if you want to go to China for educational purposes, you have to get the invitation letter from a school and the school obtain a visa notice sheet from the Foreign Affaires Office in the city, then you can apply for Business visa, otherwise, you can only apply for tourist visa (L visa), however, For tourism, Pakistani citizens should first contact a qualified travel agency of China and settled down all the details of the tour. And then the tourist agency may arrange a visa notice form for a travel group (more than 5 people) and a group-visa for you. At present, individual tourists are not accepted.