Ball joint

Disclosed is a ball joint, the ball joint capable of preventing damage due to interference between parts even when the ball joint is tilted at a maximum angle and guaranteeing operational reliability, and including a spherical ball stud (11), a shaft (13) coupled to a side of the ball stud, a holder (20) having a seat portion (21) to surround an outer circumference of the ball stud, and an elastic portion (22) protruding upwards from the holder, having on an inner circumference thereof an inclined surface to limit a tilting angle of a portion of the shaft adjacent to the ball stud, and undergoing elastic deformation when the shaft is tilted at a maximum angle, so that the elastic portion absorbs shock when the ball joint is rotated to the maximum, thus preventing damage or removal of parts.