All-terrain dune buggy and swing arm thereof

The invention relates to the technical field of dune buggies, in particular to an all-terrain dune buggy and a swing arm thereof, the all-terrain dune buggy comprises a swing arm main body and a ball head arranged on the swing arm main body, the ball head comprises a ball shell, a ball, a ball pin and a ball bowl seat, the ball and the ball pin are integrally formed, and the ball is movably arranged in the ball shell through the ball bowl seat; the ball bowl seat comprises at least two clamping blocks, and a spherical groove is formed in one side face of each clamping block. By arranging the adjusting mechanism and the driving mechanism, the driving mechanism moves upwards to drive the adjusting mechanism to drive the four clamping blocks to get close to the middle, so that a ball is clamped, and even if the ball bowl seat is abraded in the using process, the ball bowl seat can not be damaged. And the four clamping blocks can clamp the ball again through cooperation of the adjusting mechanism and the driving