An automobile drive system capable of adjusting automobile height comprises a front drive axle (5), a back drive axle (6), an engine (1), a hydraulic transmission box (2) and a corresponding drive shaft (4). The engine (1) is arranged between the front drive axle and the back drive axle. The automobile drive system is characterized in that the engine (1) and the hydraulic transmission box (2) are arranged in an axis-parallel manner, and are connected with each other through a middle transmission device (3) in a transverse-arranged manner; and the middle transmission device is arranged on one side close to the output end of the engine (1) and the input end of the hydraulic transmission box (2). Longitudinal and transverse size adjustments of the engine and the transmission box are realized, and height of the overall automobile is strictly controlled; and the hydraulic transmission box is arranged close to a geometric midcourt line of a main car frame, and the hydraulic transmission box transmits power to the front drive axle and the back drive axle respectively through the drive shaft. The automobile drive system is compact in arrangement, so that the height of the overall automobile can be controlled.