The invention discloses a vehicle body of an all-
terrain vehicle, and the vehicle body is a unitary-construction
welding combined body. The vehicle body comprises a unitary-construction baseplate
welding combination (1), a left body
welding combination (2), a right body welding combination (25), a left vice box welding combination (3), a right vice box welding combination (31), a
front panel welding combination (4) and a rear panel welding combination (5); and the middle parts and rear parts of horizontal planes of left and right vice boxes are respectively provided with a front antiroll rack (7) and a rear antiroll rack (6). Because a
shoal-water baffle technique that the upper edges of front and rear peripheries of the vehicle body are protruded and an inclined angle is formed between each upper edge and the horizontal plane is adopted, and a technique that an upper
peripheral opening of the vehicle body is cavity-shaped is adopted, the cross-country power of the vehicle body when the vehicle body is running ashore, offshore and on rugged road surfaces is effectively improved, and the problem of
underwater floatability and stability is solved. A shell of the vehicle body is prepared by welding and splicing high-strength plates, therefore, the vehicle body is high in strength, strong in striking-resistant capacity, small in
mass and low in center of gravity.