CENTRAL Queensland Labor MPs have promised to keep fighting for fly-in, fly-out reforms at a union rally in Brisbane.

Unionists from across central Queensland and Brisbane marched through the Brisbane CBD to parliament house.

Queensland Council of Unions assistant general secretary Michael Clifford said although the unions supported the Labor Government's work more needed to be done to protect regional jobs.

He said FIFO mines were "killing regional communities" and preventing miner's wages from being spent at local shops and businesses.

Mirani MP Jim Pearce said workers having to fly to Brisbane to be flown back to their home town to be bussed to work was unacceptable.

"We've got people living in Moranbah who fly to Brisbane, get on a plane, fly back to Moranbah, get on a bus go out to the mine which is about 17kms from the town," he said.

Fellow central Queensland Labor MPs Brittany Lauga and Glenn Butcher as well as Katter's Australia Party state MPs Rob Katter, Shane Knuth and Federal MP Bob Katter were also present at the rally.