The invention discloses a centrifugal spinning negative-pressure traction device. The centrifugal spinning negative-pressure traction device comprises porous partition plates, a negative-pressure generating device and a funnel cavity, wherein the negative-pressure generating device is connected with the funnel cavity to provide negative-pressure suction force for a large-area fiber collecting plate, and the traction adsorption forces of provided negative pressure to various portions of the fiber collecting plate are evenly distributed through a plurality of layers of porous partition plates with gradually changed pore diameters. On the one hand, through the simple structure, secondary traction of negative pressure on the fibers is utilized, so that the fiber solidification forming speed and the fiber falling speed are increased, fiber thickness and distribution are uniform, and the efficiency of the production process is high; and on the other hand, the fibers are guided to collect andabsorb impurities such as excessive volatile solvents and boundary-crossing fibers through the traction effect of the negative pressure, so that the production safety and the quality of finished products are improved.