According to The Telegraph, he said the transplant on a corpse showed his techniques for re-connecting a spine, nerves and blood vessels to allow two bodies to be reconnected would work.
"The first human transplant on human cadavers has been done", Canavero said.
We're not sure who the patient is going to be after disabled Russian man Valery Spiridonov, 31, said it was unlikely to him after he was initially announced as the likely patient.
An Italian professor at the Turin Advanced Neuromodulation Group, who has been working with the team behind the head transplant, told The Telegraph that they would eventually perform the operation on a living human paralysed from neck down.
He did not provide proof though, which raised a few suspicions.
Meanwhile the Sergio Canavero and is associates repeatedly claims of success and also stated that earlier the surgery have successfully carried out on both rats and monkey, as well as now on a human corpse.
Asked if the final plan to go through the procedure would continue throughout the world after the preliminary tests in China, Professor Canavero said, given the amount of criticism he received, he felt he would not be transplanting internationally. "A full head swap between brain-dead organ donors is the next stage", Canavero said at a press conference in Vienna, the Telegraph of the United Kingdom reported. Everyone said it was impossible.
He added that it would be the last step before a full head transplant happens some time before the end of the year, USA Today reported.
But the medical community has looked at the surgery and the spectacle surrounding it with horror. Several doctors and scientists have pointed out that even though Dr Canavero claimed to have performed a head transplant on a monkey, the primate never regained consciousness even through it seemed to have survived the surgery.