Unfortunately it's 0 miles because Q is not on the list of booking classes that earn miles. It is the very cheapest fare for Cdg-syd and the only one that does not earn miles.

The cheap China Eastern Economy fares that earn miles are, according to the FB partner pages, L M N R S V T.
These fares would give you around 10600 miles for the return flight.

The second cheapest fare for Cdg-Syd is N, which is about EUR190 more expensive than Q. So for someone who is a Gold or Platinum member with FB it would probably make sense to buy N instead of Q. If you are not, don't worry, you save so much money by buying this fare that not getting miles is not really an issue here.