BACKGROUND: This study was conducted to standardize the written informed consent form for transfusion to establish the recipient's self-determination and safe blood transfusion procedures of hospitals. This survey focused on doctors' acknowledgment on informed consent before conducting a transfusion and its current situation. METHODS: Data collection was conducted in 11 tertiary hospitals from February 2010 to March 2010 with random sampling among the 30 hospitals that have a blood transfusion committee. The survey was carried out in the division of medical services that supports blood transfusion or in the blood transfusion committee of each hospital. The questionnaires focused on the necessity of written consent and its contents before transfusion. Also, informed consent forms were collected when a hospital already had an informed content form. RESULTS: The majority of hospitals (94.9%) agreed about the necessity of informed consent. However, only 6.7% of hospitals were obtaining informed consent before transfusion. The contents of the written form were the necessity of blood transfusion (94.9%), the adverse effects of transfusion (84.1%) and beneficiary of the transfusion (64.6%). Twenty-eight point two percent of the medical institutions were obtaining informed written consent forms and keeping them in the medical records. The problems for obtaining informed consent before a transfusion was insufficient standardized forms (40.4%) and a lack of time (33.9%). CONCLUSION: Though doctors agreed to the provision of information through consent forms, there were no standardized procedures and forms. Therefore, this study introduced the written form to medical institutions and academies. Also, it was applied to hospitals as an evaluation index in 2010. The written informed consent form can contribute to the safety of blood transfusions in the medical area.