Joondalup Detectives Senior Sergeant Brad Burnett said police charged the 44-year-old man on February 20 following his alleged attack between February 13 and 16.
Sgt Burnett said an argument led to the man’s alleged three-day imprisoning of the woman.
‘We allege he locked her in a bedroom and stopped her when she tried to escape,’ he said.
Among a range of accusations, Sgt Burnett alleged the man bit the woman on the left shoulder, burned her with a cigarette butt and stabbed her in the knee with scissors.
He said the man was alleged to have ‘threatened to mutilate her body’ while also threatening to burn down the woman’s father’s house.
The accused was remanded in custody on February 21 after facing Perth Magistrates Court on charges of aggravated assault, threats to kill and deprivation of liberty.
He is expected to reappear in court on March 16.
Sgt Burnett said police were investigating further charges.