Abstract: Disclosed is a door hinge having a buffering function, including: a casing within which a damper is disposed in an axially movable manner, an end portion of a piston rod at the front end of the damper being fixedly connected to the casing; a hinge cup; a linking member A with a right end rotatably disposed inside the casing via a first rotating shaft and a left end rotatably connected to the hinge cup via a third rotating shaft; and a connecting member B with a right end rotatably disposed inside the casing via a second rotating shaft and a left end rotatably connected to the hinge cup via a fourth rotating shaft. The end portion at the right end of the linking member A or the connecting member B is disposed corresponding to the rear end of the damper.