Melbourne Stars will face Sydney Thunders in the finals of BBL which will be played on Sunday, 24th January.
Melbourne Star won the toss and chose to field first.
Perth Scorchers made 139 runs for the loss of seven wickets with the help of 59 runs by Adam Voges. Daniel Worrall took 3 for 25.
In reply Melbourne Stars chased the target for the loss of only three wickets and 11 balls were spared.
Man of the match went to Kevin Pieterson for his blistering innings of 62 runs in just 36 balls.
Perth Scorchers 139/7 (20/20 overs)
Melbourne Stars 140/3 (18.1/20 overs)