PSG clash with Monaco on Sunday and the young Brazilian believes playing against the best strikers in the world will only improve him
The 19-year-old made a €31.4 million move to the French capital from Roma over the summer after just one year in European football.
The Ligue 1 champions face the big-spending Principality club on Sunday and the Brazilian is looking forward to defending against Falcao.
"When I play against Falcao on Sunday, I will face an oppenent who will make me grow as a player," he told Le10Sport.
Marquinhos scored in PSG's 4-1 win over Olympiakos in their Champions League opener in Greece on Tuesday, and he says the experience makes him want to increase his work ethic further.
"It was a difficult game early on, as we expected, but we remained strong and patient," he continued.
"In the end we reached our primary goal, which was to win the game. Playing in a game like that just makes me want to continue working hard on my game."