In Vietnam, the demand on blood for treatment is increasing. However, the number of blood donors is low, the collected blood only meets 40 percents. So, to ensure a safe and sufficient supply of blood products, recruiting and retaining blood donors are very important. In particular, the repeat blood donation campaign is a basic solution. From this problem, the authors carried out the research: Accessing the situation of the repeat blood donation campaign in Vietnam Cuba Dong Hoi friendship hospital. The objective of this research is to test the blood number and quality of repeat blood donors as well as their knowledge. From that to propose solutions for the repeat blood donation campaign in Department of Hematology - Blood transfusion, Vietnam - Cuba Dong Hoi Friendship Hospital.