Almost half Queensland's LNP MPs have voted to restore civil partnerships despite the party being responsible for them being scrapped in the first place.

MPs on Thursday voted 69-22 in favour of restoring state-sanctioned civil partnership ceremonies for straight and same-sex couples, meaning the government's amendment was passed easily.

Thousands of people turned out for the same-sex marriage equality rally at Queens Park in August. Credit:Michelle Smith

Opposition Leader Lawrence Springborg was one of 20 LNP MPs who, along with Katter MPs Rob Katter and Shane Knuth, voted against the changes.