The entire incident, which took place last Tuesday in the city of Wenzhou in south eastern China, was caught on camera and posted on YouTube.
The bus driver, named locally as Dong, had apparently been drinking heavily during a lunch with friends before running out into a busy street and stopping traffic.
He proceeded to jump onto the bonnet of a car driven by his victim, identified as ‘Du’, and hammer on the windscreen while Du sat inside screaming.
As Du scrambled out of the car to escape, Dong chased after her, catching her and biting her face. As the two fell to the ground, Dong continued to chew on her face, leaving Du with major damage to her nose and lips.
Passers-by said they attempted to pull Dong off Du, but said he was so ‘crazed’ that they were unable to. Eventually police arrived at the scene and restrained and arrested him.
The attack is the latest in a string of ‘face chewing’ incidents around the world.