A Victorian police officer has been charged over alleged connections to outlaw motorcycle groups.

The senior constable, from the north-west metropolitan region, has been charged with misconduct in the public office.

He is also facing drugs and firearms charges.

The officer has been suspended without pay and will face the Melbourne Magistrate's Court next week.

Police say his arrest is the result of a joint operation by Professional Standards Command and a taskforce investigating police links to outlaw motorcycle groups.

Victoria Police set up the taskforce as part of a major blitz on outlaw bikie gangs last month.

The move came amid media reports that two of the country's outlawed bikies, Comanchero president Amad Malkoun and Bandidos boss Toby Mitchell, had cultivated relationships with police.