The invention relates to an automobile differential lubrication structure which solves the problems that in splash lubrication, the lubricant demand is large, bubbles are prone to generation, the circulation time is short, the power economy is poor, and lubrication noise is high. The automobile differential lubrication structure can form steering and axial lubrication channels and comprises a transmission box formed by a transmission shell and a clutch shell in a surrounding mode. A differential shell, a differential gear ring and an oil-proof cover are arranged in the transmission box. A first supporting through hole is formed in the clutch shell. One end of the differential shell is connected into the first supporting through hole in a rotating mode through a first differential bearing. The oil-proof cover is arranged on the differential shell in a sleeving mode and located between the differential gear ring and the first differential bearing. Blocking strips are arranged on the outer surface of the oil-proof cover and distributed along the oil-proof cover in the circumferential direction and extend in the axial direction. A differential steering lubrication channel is formed among the oil-proof cover, the differential gear ring and the transmission box. Multiple axial differential lubrication channels are formed among the clutch shell, the oil-proof cover and the blocking strips in a surrounding mode.