Queensland MPs will be asked to state their position on decriminalising abortion, as part of a Federal Senator's campaign to shine a light on the state's "outdated law" and bring about change.

Spurred on by reports Queensland women are travelling interstate for abortions, Larissa Waters has begun campaigning to decriminalise the procedure in the sunshine state, with plans to publish where Queensland's MPs stand on the issue.

Queensland Greens Senator Larissa Waters. Credit:Michelle Smith

The Greens Senator has written to each of the state's 89 MPs asking where they stand on abortion's inclusion in the Queensland criminal code.

Previous attempts to address the issue have ended with ambiguous amendments made to the legislation, which make abortion lawful, if a medical professional considers there to be significant danger to a woman's mental or physical health, as well as give legal protections to doctors who provide medical treatment "in good faith".