An anti-rolling device of a ball and socket joint prevents the rolling movement of a moving body coupled to the ball effectively without hindering omni-directional tilt rotational movement of the moving body, i.e. a moving part relative to the socket, a fixing part. The anti-rolling device comprises: a bracket on the moving part that is fixed to the circumference of the moving body; a guide channel whose upper part is pivoted to the bracket on the moving part; a sliding bar coupled to the guide channel in a way being possible to be slid thereinto; and a bracket on the fixing part which is mounted on the fixing part and coupled with the lower part of the sliding bar.