The present invention relates to a robot for handing over and carrying car, including traveling carrying frame, traveling mechanism, carrier roller drive mechanism, telescoping mechanism and holding mechanism. Said traveling mechanism is mounted on the traveling carrying frame, and includes traveling wheels, retarding motor and drive shaft; the carrier roller drive mechanism includes carrier roller, carrier roller chain wheel, carrier roller chain, retarding motor, drive shaft, chain wheel and chain; it has two telescoping mechanisms, every telescoping mechanism includes retarding motor, gear and rack rod; it also has two holding mechanisms, every holding mechanism includes holding self-body, retarding motor, gear, chain wheel, mechanical arm, holding chain wheel and chain. Said invention also provides the concrete operation method of said robot.