IPSWICH Hospital staff will join thousands of colleagues across the state in a 24-hour strike on Wednesday.

Allied health professionals including audiologists, physiotherapists, scientists and dental workers will take the industrial action after six months of collective bargaining on new agreements faltered.

The strike involves members of the Queensland Public Sector Union and the Liquor, Hospitality and Miscellaneous Union.

Doctors and surgeons will not be involved in the industrial action.

Ipswich Hospital staff joined a rally in Brisbane this October calling for better pay and on November 11 about 50 staff held a protest outside the hospital.