They had three points to spare over Westmeath.
Laois have been spared the drop to division two hurling in 2022.
They defeated Westmeath 1-27 to 0-27 in the Allianz Hurling League relegation playoff this evening.
There's no doubt the first half sending off of Aaron Craig for an apparent stamp had a massive bearing on the outcome of this game.
The Lake county had started much the better of the two sides and led by six points, 0-17 to 1-8 at the time of Craig's dismissal.
PJ Scully proved to be the key man for Laois in the second half, knocking over 0-11 the most of which were frees.
Shane O'Brien will be left ruing the ill-discipline of his half back and will now have to negotiate a division two league campaign in the build up th a Leinster Championship challenge.
For Laois the late sending off of Willie Dunphy couldn't dampen the spirits and it has been a remarkable turnaround from the side that hadn't won a game in 2021 until three weeks ago.
The showed great composure despite the deficit and also at the death when Westmeath were pressing for a late green flag.
Laois scorers:
PJ Scully 0-17, Ross King 1-2, Cha Dwyer 0-3, Willie Dunphy/Jack Kelly both 0-2, Paddy Purcell 0-1
Westmeath Scorers:
Killian Doyle 0-11, Niall O'Brien 0-7, Darragh McNicholas 0-3, Ciaran Doyle 0-2, Niall Mitchell/Joey Boyle/Aonghus Clarke/Kevin Regan all 0-1.
Full Interview: Portarlington Footballer Ronan Coffey
Full Interview: The Down's Manager Dermot Power
St Brigid's And St Joseph's Aiming To Reach Leinster Semi-Finals
Ballinagar And Milltown To Meet In Leinster Intermediate Quarter-Final
Ronan Coffey Praises Portarlington’s Young Guns Ahead Of Leinster Quarter-Final
Mauricio Pochettino Set To Be Appointed Manchester United Manager
Darragh Murray Named In Irish Squad For Fiji Clash
Portlaoise Panthers Aiming To Bounce Back In Division One
Portarlington On The Road In Leinster
The Down's Building Towards Leinster Football Quarter-Final
Laois Provisional League Fixtures Revealed
The Harps Manager Praises His Sides Efforts In Leinster
Buccaneers Claim Back To Back AIL Wins
Kilcormac Killoughey Captain Full Of Praise For Goalkeeper
Lough Lene Gaels Suffer Late Heartbreak In Leinster Quarter-Final
Crookedwood Win Leinster Junior Camogie Title
Conor Slevin Wins Dramatic Leinster Quarter-Final For Kilcormac Killoughey
Ireland Secure Comfortable Win Over Argentina
Kilcormac Killoughey Seal Win But Heartbreak For Lough Lene Gaels And The Harps