【摘要】The utility model belongs to the field of medical appliances, and relates to a novel negative pressure suction device with a nerve root retractor. The negative pressure suction device is provided with the rotatable nerve root retractor the front edge of the nerve root retractor protrudes from an internal opening of a suction tube a main body connected with the nerve root retractor is annularly sheathed with the front section of a connecting rod of the negative pressure suction device, can freely rotate by 360 DEG, and can be adjusted according to the direction of different lumbar nerve roots and by adjusting the main body of the nerve root retractor, the utility model can ensure that the nerve root retractor is tightly attached to the nerve root and ensure the traction effect. The negative pressure suction device is rountinely applied to the spine surgery, particularly to the field of the lumbar operation.