WA serial killer refused parole again

West Australian serial killer Catherine Birnie has again been denied parole.

Birnie, 64, and her late partner David Birnie raped, stabbed, strangled and clubbed to death four victims in their Willagee house, in Perth's southern suburbs, in 1986.

They were caught when a fifth intended victim escaped after they abducted her at knifepoint.

Attorney-General Michael Mischin said on Friday that he accepted the recommendation of the Prisoners Review Board.

"Appropriate notifications have been made through the Victim Notification Register," he said.

Under law, Birnie's life sentence is reviewed every three years, so her next review will be in 2019.

David Birnie hanged himself in his protective custody Casuarina Prison cell in 2005.

She wasn't allowed to attend his funeral.