Stunning strikes from Archie Campbell and Kyle Wilkie handed Morton a straight-forward win over Livi on the day they lost out on the First Division title to Partick Thistle.
Livi didn’t do themselves justice during the game and were nearly behind when Wilkie hit a 25-yard effort off the bar before Colin McMenamin headed the follow-up over.
Morton broke the deadlock when Tony Wallace’s cross was knocked back across goal by McMenamin for Campbell who fired in the opener.
Wilkie doubled Morton's lead early in the second half when he charged past Livi players and fired a low shot past Darren Jamieson.
The defeat keeps Livingston in their coveted third place in the First Division, ahead of Falkirk on goal difference.
Jamieson, Donaldson (Mullen 46), Booth (Talbot 80), Garcia Tena, Barr, Watson, Andreu, Fox, Lander (Downie 58), O'Brien, I.Russell
Subs not used: Beaumont, McNeil
Hutton, Taggart, Halsman, Reid, Rutkiewicz, McLaughlin, Wallace, Wilkie (O'Brien 89), McMenamin, Hardie (Bachirou 77), Campbell (MacDonald 70)
Subs not used: Dyer, Gaston
Referee: Craig Charleston
Official Attendance: 1,158
Match report: Kieran Westbrook