The 83-year-old will front the Perth' Magistrates Court today.
Police have charged the man with child sexual assault offences dating back to 1970, during his time as a Catholic Priest in Perth's South.
It's alleged during 1970 the man indecently assaulted a 7-year-old girl while he worked as a Priest at a church in Carlisle.
The man from Subiaco has been further charged with three counts of indecent assault on a female.
He is next due to appear before the Perth Magistrates Court today.
The investigation is ongoing and detectives urge anyone with any information regarding this matter to call Crime Stoppers on 1800 333 000 or make a report online at www.crimestopperswa.com.au
If you are or have been a victim of sexual abuse, or if you have information about someone being abused, contact police on 131 444.