The 43-year-old allegedly sexually abused women while working as a self-defence trainer.
The man, who was arrested by Armadale Detectives, will front Perth Magistrates Court on Friday over a string of alleged sexual based offences.
Authorities said the incidents occurred between 2013 and 2018 when the man indecently assaulted a number of women while working as a trainer at a self-defence facility in Southern River.
The man has been charged with nine counts of indecent assault, 2 counts of sexual penetration without consent, 2 counts of possess controlled weapon and 2 counts of possess prohibited weapon.
The investigation is ongoing.
If you are, or have been a victim of sexual abuse, or if you have information about someone being abused, please contact police on 131 444.
Cooloongup man accused of historical child sex offences dies just weeks before trial
Boat owners urged to make safety a priority this Easter
Mundijong man accused of attempting to procure children overseas for sexual activity
PM Anthony Albanese to address nation
Mandurah teacher who raped student to remain on bail
Man charged after allegedly exposing himself to girl on Transperth bus in Lakelands
Fire rips through Golden Bay home
Firefighters battle bushfire near Nambeelup
Alcoa Children's Festival cancelled due to severe weather