Britain 208 for six (Hale's 84, Butler 68, Ellis A doubles-20) operated Australia 200 for nine (Warner 73, Marsh 36, Wooden 3- 34).
Alex Hales made a statement with a quick 84, while Tag Wood and Mike Curran thwarted Australia's daring chase
As England ramped up their T20 Globe Cup preparations with an 8-run victory in the first match of the series in Perth.
Within a track record of 132- working opening partnership for England against Sydney, Hales as well as up-and-coming Jos Buttler narrowed down a weak attack to power the tourists into a big total.
An intense Australia, which reduced Steven Smith, with David Warner building for the second half-century in a row,
But England kept their nerve during quality death basketball from Wood and Curran.
Worldwide cricket has made a good comeback in Perth since the Women's T20 World Glass in February 2020. The last two online matches of the series will of course be played in Canberra from Wednesday.
Earning Butler's bang, Hales held his hand against Australia's attack on a sharp message from Optus Stadium, a golden opportunity for Butler and Hales, who were also exclusive to Phil Sodium.
Buttler demonstrated his fitness from good calf damage with a scorching attack in the opening over, followed by a devastating attack in the first international meeting at Cameron Green's home ground, four fours away.