Abstract: Objective To provide the evidence for collection and storage of blood in Department of Blood Transfusion and use of blood in clinicians by investigating the blood components used in our hospital. Methods Blood components used in our hospital from 2004 to 2010 were analyzed. Results The total volume of blood components used in our hospital from 2004 to 2010 tended to increase.Of the blood components,whole blood,red blood cells,plasma,platelets and cryoprecipitate accounted for 99%,0.21%,52.90%,37.38%,5.16% and 4.35%,respectively.Red blood cells,plasma,and cryoprecipitate in particular were mainly used in surgical operation,while platelets were mainly used in departments of internal medicine.The average volume of red blood cells and cryoprecipitate used in operation tended to increase,while that of platelets and plasma used in operation tended to decrease slowly. Conclusion The total blood volume used in our hospital increases rapidly,thus Department of Blood Transfusion need to actively enlist donors.The proportion of blood components is rational in our hospital.However,platelets are seldom used and the use of cryoprecipitate increases sharply,thus clinicians should follow the strictly indications for the transfusion of blood components.