The present invention relates to a blood recirculation device. More particularly, the present invention relates to a blood recirculation device capable of continuous blood suction and capable of minimizing mechanical damage to the blood during such a process. The blood recirculation device according to the present invention repeats suction with one side unit and repeats a process of transferring stored blood with the other side unit, thereby being capable of continuous blood suction and capable of efficiently supplying suctioned blood to an erythrocyte washing system of an autologous blood transfusion machine or a cardiopulmonary bypass machine.
