The two sides will meet in Croke Park next month.
Laois have reached back to back All Ireland Finals in the Premier Junior Camogie Championship.
The O'Moore County secured a convincing 4-15 to 0-3 win over Wicklow in Kingspan Breffni Park on Saturday.
Aimee Collier finished with 2-5, while Eimear Hassett and Susie Delaney were the other goalscorers.
They will now face Armagh in the final after they dispatched Roscommon 2-17 to 1-8.
Collier says she wants to see a big crowd in Croke Park for their decider:
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