The invention discloses a lubricating grease storage tank clearing device with the high cleaning efficiency. The lubricating grease storage tank clearing device comprises a base; a support of a 7-shaped structure is welded to the outer wall of the top end of the base, and a motor is fixed to the side of the outer wall of the top end of the support through screws; a vertically-arranged rotary rod is welded to an output shaft of the motor, and the bottom end of the rotary rod extends to the bottom of the support; a driving gear is welded to the bottom end of the rotary rod, and obliquely-arranged second supporting rods are fixed to the two sides of the outer wall of the bottom end of the support through screws; a large bearing is arranged at the bottom of the support, and the outer walls ofthe two sides of the large bearing are welded to the bottom ends of the second supporting rods; and a vertically-arranged casing pipe is sleeved with the inner wall of the large bearing. According tothe lubricating grease storage tank clearing device with the high cleaning efficiency, the structure is simple, through the whole design, when a lubricating grease storage tank is washed, grease on the inner wall and the bottom wall of the storage tank is easy to wash, manual washing is not needed, the workload is greatly reduced, and the cleaning efficiency is improved.