A 46 year old Queensland man has been charged with attempted murder after a family violence related incident on board a cruise ship now docked in Hobart.

Police allege the man attempted to throw his partner overboard the Radiance of the Seas cruise ship following an altercation about 3.30am yesterday while the ship was underway.

Police were called to the scene about 8.30am where the man was arrested.

Following an investigation, the man was charged with attempted murder of his partner.

The man has been detained to appear the Hobart Magistrates Court later this afternoon.