Falealea Fia pleaded guilty in Bundaberg Magistrates Court on Thursday one count of assault occasioning bodily harm.
The court heard the victim was walking home from a Childers hotel just after midnight on September 6.
The victim and Fia were both involved in a fight in the middle of the street.
Fia continued assaulting the victim when he was on the ground and couldn't defend himself.
The victim sustained injuries including a broken nose and a chipped tooth.
Police prosecutor Sergeant Dean Burgess told the court Fia had no criminal history to tender.
Fia's barrister Craig Ryan told the court his client was a Tongan national who had been in Australia on a migrant farm work visa program.