Heavy cross-county traction vehicle

The utility model relates to a heavy cross-country traction vehicle which is composed of a cab assembly and a chassis. The heavy cross-country traction vehicle is characterized in that the driving method is 6*6 single tyre all-wheel drive method, and the assorted wheels are cross-country vehicle wheels; the arranging method of the vehicle axles is a one-front and two-back type, namely the frontage of a transfer gear is provided with a driving axle, the backside of the transfer gear is provided with two driving axles, namely a group of double connecting transfixion type driving axles; further, the suspending device of the heavy cross-country traction vehicle is an air spring balance suspending device. The utility model has the advantages of convenient and flexible operation, comfortable sitting, small turning diameter, big traction quality, good flexibility and cross-country capacity, convenient maintenance, etc., and the utility model can be widely applied in multiple fields.