A senior pastor in Canberra allegedly used his religious position to do "prayers of deliverance" on church members that involved sexual acts, police say.

The man's lawyer appeared on his behalf in the ACT Magistrate's Court this morning. The man is facing four charges for acts of indecency, including one count of sexual intercourse without consent.

His lawyer indicated he will plead not guilty.

ACT Policing allege the man, 53, would tell female members of the congregation they would be cursed and their family members would die if they did not engage the sexual behaviour.

Detective Station Sergeant Matt Reynolds said police believed there may be more victims who had not yet come forward.

"This is a particularly sinister crime, where someone appears to have used a position of power for their own sexual gratification," he said.

"It is distressing to see this type of exploitation still going on in our community."

Detective Reynolds said investigations suggested the man may have committed similar acts in the ACT, NSW and New Zealand.

Police urged anyone with information to contact Crime Stoppers — anonymously if they wish — on 1800 333 000 or via the Crime Stoppers ACT website and quote reference 6298421.

The case is expected to return to court in April.