The club added that many of their star players would be in the squad for the trip.
The match is scheduled to happen on June 2 at Sydney's Olympic Stadium.
"Australia is uncharted territory for the modern Chelsea and I can't wait to see our many fans there as we show our appreciation for their long-distance support of the club," Chelsea chairman Bruce Buck said in a statement.
Many of the team's big names will take part, including John Terry, Didier Drogba, Diego Costa and Cesc Fabregas.
Chelsea's match extends a busy off-season schedule of European team's playing in Australia, with Manchester City, Real Madrid, Roma, Liverpool, Villarreal and Tottenham Hotspur already confirmed for friendly games.