I want to travel to china from Fiji to university of Shanghai for 3 weeks how do i get the visa

Do you go to Shanghai for short-term study purpose? If yes, please apply for an X2 by providing your passport, appplication form, recent photo and admission notice from the university. The China embassy will handle application and give the result in about four working days.

The purpose for the visit is not study it’s a workshop at the university do I need a visa or is it no requirements for less than 30 days

If so, maybe you can enjoy free entry to China for less than 30 days, and no visa will be needed. You can contact the embassy to confirm that.