The invention discloses an independent suspension steering drive axle, which comprises a main reducer arranged on the drive axle and fixed on a vehicle frame; a wheel reductor arranged on a wheel; a transmission axle, both ends of which are connected with the main reducer and the wheel reductor through spherical hinges; a left upper lower swing arm and a right upper lower swing arm which are respectively connected to the casing body of the main reducer and connected with the wheel reductor through a steering knuckle; a steering linkage with an open type trapezoidal structure, both ends of which are connected with the wheel reductor through the steering knuckle; and spiral springs installed on the left upper lower swing arm and the right upper lower swing arm, the other end of which is fixed on the vehicle frame, and shock absorbers are arranged in the springs. By adopting the heavy duty vehicle of the independent suspension steering drive axle, the requirements of large rotating angle and high jumping volume of the wheel can be met through the hanging spherical hinges; the wheel can normally run at constant speed at the equilibrium position under the conditions of jumping at large amplitude and rotating at large angle by using the double-ball-basket constant velocity universal transmission axle, and the requirement of performance of the Third Generation military vehicle is met.