The invention relates to a novel transfusion soft bag oxygen exhauster, which is mainly applied in the field of non-PVC (Polyvinyl Chloride) film soft bag production lines. The novel transfusion soft bag oxygen exhauster comprises a nitrogenizing and filling nozzle and a transferring nitrogen flushing opening, wherein the nitrogenizing and filling nozzle is respectively connected with a vacuum line and a nitrogen pipeline; the transferring nitrogen flushing opening is respectively controlled by a vacuum valve and a nitrogen valve so as to be arranged on a horizontal movement air cylinder and a vertical movement air cylinder, so that the transferring nitrogen flushing opening can be moved in a horizontal direction and a vertical direction; the transferring nitrogen flushing opening, the horizontal movement air cylinder and the vertical movement air cylinder can realize synchronous movement with a bag transferring annular belt along with a set of servo drive system; the transferring nitrogen flushing opening is connected with the nitrogen pipeline, and is controlled by the sealed nitrogen valve. Before a soft bag is filled, oxygen replacement in the bag before filling is realized through vacuumizing, nitrogenizing and vacuumizing; during a process from filling to sealing, the maximization of oxygen replacement in the bag is also realized through continuous nitrogen displacement of the transferring nitrogen flushing opening.