The Liberal National Party Queensland convention has rejected a motion to suspend immigration from Islamic nations, but called for headscarves to be banned for girls under the age of 10 in schools.

The last day of the conference in Brisbane also saw heated debate on the Paris Climate Accord and traffic light symbols, with party members condemning the spending of public money on altering traffic lights for "ideological purposes".

Opposition Leader Tim Nicholls at the LNP convention in Brisbane on Sunday. Credit:Darren England/AAP

Delegate David van Gend moved the resolution on foreign policy, calling on the federal government to suspend immigration from nations that "enforce sharia doctrines of death for blasphemy, apostasy, homosexuality or adultery".

"Sharia is incompatible with the fundamental values of a liberal democracy," Mr van Gend said.