Abstract: Objective To improve the rational use of blood transfusion by investigating the clinical blood transfusion data. Methods Medical records of patients received blood transfusion from 2010 to 2015 in a grade A class 3 hospital were investigated and analyzed，including total quantity of clinic blood transfusion，situation of component blood transfusion and blood transfusions in main departments. Results The number of hospitalized cases has remarkably increased during the last 6 years in this hospital. However，the total quantity of blood transfusion，per capita transfusion volume and the ratio of patients received blood transfusion reduced in a downtrend. Only the cases received blood transfusion remained basically unchanged. The highest rate of transfusion was found in the use of red blood cell （43.21%），and the others were plasma （36.76%），platelet （17.46%），and cryoprecipitate （2.57%）. Conclusion Thanks to the safety of blood transfusion management system implementation，the clinical use of blood becoming rational and the ratio of component blood transfusion was improved，yet the reasonable use of plasma still expects for enhancement.

Key words: Clinical blood transfusion, Analysis of blood transfusion , Blood transfusion management