10 February 2017 Last updated at 15:51 GMT
He had to be taken apart bone by bone by a team of six people and just in case you're wondering that's 292 bones in total, so it took them quite a bit of time.
He will now be cleaned and repaired before starting a tour of the UK in 2018.
Goodbye for now Dippy.
After 112 years Dippy the Dinosaur has finally left his home at the Natural History Museum in London.