The JSA and the Japanese Society of Blood Transfusion and Cell Therapy established "Guidelines for Action Against Intraoperative Critical Hemorrhage" in 2007. This guideline shows practical strategies for managing life-threatening hemorrhage. From 2007 to 2009, we conducted the annual survey with transfusion services of 384 hospitals accredited by the JSA. From the results of these surveys, we proposed some new strategies for managing life-threatening hemorrhage as follows: 1) It is necessary to establish a documentation of institutional procedures for urgent transfusion practices including an emergency code for blood requirement, according to "Guidelines for Action Against Intraoperative Critical Hemorrhage". 2) The simulation exercise according to the documentation of institutional emergency transfusion procedures should be held. 3) On the occurrence of a life-threatening hemorrhage, we should make an appropriate decision to use uncrossmatched ABO-matched blood components and/or ABO-mismatched compatible blood components, to save the patient's life. 4) Though it is well known that the post-transfusion graft versus host disease (PT-GVHD) has poor prognosis and irradiation of blood products is essential for avoiding the PT-GVHD, in some hospitals, non-irradiated blood components were used in situation of critical hemorrhage. We recommend that irradiated blood components should be used if possible in resuscitating a patient with critical hemorrhage.