Police and rescue workers were called to the scene, in Soi Yodsane 2, Chalong, at 9:25am.
Officers arrived to find a Bangkok-registered tour bus with Sri Nawanput Transport emblazoned on the side parked in the small street, with 14-year-old Thonkorn Sommat still under the bus just before the front right wheel.
Thonkorn, a student at Muang Phuket School just south of Chalong Circle, was bleeding profusely from injuries to his mouth. He also suffered scratches and other minor injuries to his right leg and head.
By the time police arrived, his white-black Kawasaki KSR motorbike had been moved to the side of the road and local residents were rendering assistance.
Thonkorn was taken to the Accident & Emergency Centre at Chalong Hospital for treatment to his injuries, which at last report were not serious.
The driver of the tour bus, at this stage yet to be named by police, was taken to Chalong Police Station for questioning over the incident.