Brisbane Heat have claimed back-to-back WBBL titles, defeating Adelaide Strikers by six wickets in Sunday's final at a sold-out Allan Border Field.

Chasing 162 for victory after the Strikers made 7-161 at the Brisbane venue, the Heat reached the target with 11 balls to spare after a controlled run chase.

Beth Mooney celebrates with Heat teammates. Credit:Getty Images

Opener Beth Mooney led the way for the home team with an unbeaten 56, repeating the dose from last year's final when she also made a half-century.

Laura Harris (18 not out) scored the winning run to spark the celebration, just as she did when the Heat upset the Sydney Sixers last summer.