It used to be the case that the testing permits for drones (esp. small ones) were easier to obtain, but the rules were recently tightened across the board. Be that as it may, for an aircraft of this size the paperwork needed by the Chinese FAA equivalent is nearly identical to the one for a manned unit.
You'll definitely need an air worthiness certification, which is hard to get and identical for both types. For the normal airplane, you'll also need a licensed pilot, for the drone - a licensed/certified operator, which would be a bit less strict, but not significantly so. You'll also need air traffic control approval, etc.
TL;DR: nearly the same requirements.