The Queensland Government will introduce a new offence of serious animal cruelty, with a maximum penalty of seven years in prison.

Attorney-General Jarrod Bleijie says the public has been frustrated by cases like the bashing of two alpacas at Caboolture, where an offender received a suspended sentence of six months imprisonment.

He says the new offence will apply to people who intentionally inflict severe pain and suffering on animals.

"(The new law) sets an appropriate message to those would-be offenders that this is not going to be tolerated," he said.

"It's not going to be tolerated by this government.

"It's certainly not going to be tolerated by Queenslanders.

"And we think it will set the appropriate deterrent necessary to ensure that people think twice about animal cruelty."