The Islamic State video showed men attacking the artefacts, some of them identified as antiquities from the 7th century BC, with sledgehammers or drills, saying they were symbols of idolatry.
"The Prophet ordered us to get rid of statues and relics, and his companions did the same when they conquered countries after him," an unidentified man said in the video.
The articles destroyed appeared to come from an antiquities museum in the northern city of Mosul, which was overrun by Islamic State last June, a former employee at the museum told Reuters.
The militants shoved statues off their plinths, shattering them on the floor, and one man applied an electric drill to a large winged bull.
The video showed a large room strewn with dismembered statues, and Islamic songs played in the background.'