The incident happened early Friday morning in the 1300 block of Ocean Front Walk near Horizon Avenue, according to police.
The video shows one of the men repeatedly hitting the transient with a folding chair and kicking him multiple times.
A nearby resident recorded the video after a neighbor called 911 to report the attack.
Police said they don't know have a motive for the beating.
“It doesn’t appear to be provoked, and this is still in the early stages of the investigation,”
The attackers left the scene before police arrived.
The victim, who has not been identified, was treated at a hospital for his injuries and released.