Background: Blood transfusion is a useful treatment. However, blood components sufficient provision is still difficult. Objective: Evaluate the situation of demand and supplying of blood components at Thai Nguyen National Hospital in 3 years (from 2021 to 2023). Materials: Records of data on receipt, use, and distribution of blood products of the Hematology and Blood Transfusion Center - Thai Nguyen National Hospital from January 2021 to December 2023. Method: Retrospective analysis of data at the Hematology and Blood Transfusion Center, Thai Nguyen National Hospital. Results: The average 3-year supply of blood products for Packed Red Blood cell concentrates: 89.3%, Single-donor apheresis Platelet: 90.5%, Plasma reached 108.67%, Cryo reached 100%. The Department of Clinical Hematology has the highest rate of red blood cell transfusion 9.915 units (29.5%). Conclusion: In 3 years (from 2021 - 2023), The Blood and Tranfusion center has not enough provided blood for treatment. Departments of Internal Medicine use blood components much more than Surgery and Obstetrics departments.