A Caboolture man has been charged after a bomb hoax forced the evacuation of 600 people from the Brisbane Supreme Court on Monday.

Police allege Beau Levi Kennedy made a threatening phone call to the court complex shortly before 9am before the bomb squad and sniffer dogs were called to search for any suspicious items.

Following the evacuation that lasted almost three hours, police deemed the threats to be unsubstantiated.

The 31-year-old Caboolture man has been charged with several serious offences including using a carriage service to menace or harass.

Mr Kennedy's matter was mentioned on Friday morning and he was set to appear again on November 16 in the Brisbane Supreme Court.

"We would like to remind the public that making a bomb threat is a very serious offence and those convicted could face up to five years imprisonment," a police spokesman said.