A negative-balanced isolated pelvic perfusion method, in which a drug is administered into the closed pelvis while keeping the volume of suction from the vein larger than that of injection into the artery, does not require allogeneic blood transfusion. A perfusion device is for recovering a liquid containing a drug and/or blood from a tube connecting to the inferior vena cava and for injecting the liquid obtained into a tube connecting to the artery, provided with a unit for closing the inside of the pelvis by including a unit for blocking the artery from the heart to the pelvis, a unit for blocking the inferior vena cava from the pelvis to the heart, and a unit for blocking a blood flow from the pelvis to the lower limbs. The perfusion device is provided with a pelvic perfusion unit equipped with a reservoir, an autotransfusion unit, and a dialysis unit.
