Daniel Podence scored the first goal from a lovely cross delivered by Matt Doherty after a brilliant flick from Joao Moutinho.
Castro Otto extended their lead firing the ball brilliantly into the bottom right corner after a creative work by Adama Traore from the right wing.
This result takes Numo’s side to sixth position in the Premier League table.
Wolves XI: Rui Patrício, Dendoncker, Coady, Boly, Doherty, Neves, João Moutinho, Castro Otto, Traoré, Jiménez, Castelo Podence
Subs: Cavaco Jordão, Neto, Gibbs-White, Jota, Ruddy, Saïss, Vinagre, Kilman, Buur
Crystal Palace XI: Guaita, Ward, Dann, Sakho, Mitchell, Townsend, McCarthy, McArthur, Schlupp, J Ayew, Zaha
Subs: Meyer, Kouyaté, Henderson, Kelly, Woods, Kirby, Pierrick, Gordon, Riedewald