A man jailed for beating his partner so badly that she died told paramedics she'd fallen off the toilet in the Brisbane caravan they shared.

Nathan Rodney O'Malley, 40, was sentenced to 11 years' jail on Thursday for the manslaughter of 41-year-old Olivia Tung at an Eight Mile Plains caravan park.

Paramedics who responded to O'Malley's triple zero call found Ms Tung lying without pants inside the caravan the couple shared after he kneed her in the back and stomach on March 17, 2016.

Brisbane Supreme Court was told O'Malley tried to cover up what he'd done by giving Ms Tung morphine and telling paramedics and police she had fallen off the loo.

He even re-enacted his version of events when authorities walked him through the crime scene.