Liga - Wenger: Busquets 'pretends to be hurt'
The 23-year-old has become a fixture of the Barcelona midfield, and won 38 caps for his country, but some fans have criticised him for play-acting and committing calculated fouls.
Wenger, speaking to Eurosport, said that while Busquets was a gifted footballer, he also had a cynical aspect to his game.
"He is very smart and knows how to help the team," Wenger said.
"He's generous and tactically very strong. He knows how to speed the game with great and quick passes."
"He's clever, he forces the ref to give yellow cards to the Spanish opponents. He pretends being hurt whereas he's the one who kicked. He has all the moral weaknesses that help in football. His intelligence really helps the team."
Barcelona's star-studded team have some diminutive players, and Wenger also pointed to Busquet's height as a real asset to his team.
"Barcelona needs his height above all for set pieces because they are very vulnerable," Wenger added. "He's one of the few in the team who is more than 1.80m tall. Except him, no one can really defend on a set piece."