The process of blood donation mainly consists of carrying valid documents, signing the relevant consent form and basic information, testing blood type and physical examination, drawing blood, and receiving the blood donation card. 1. Carrying valid documents: Donors are required to carry and present relevant valid documents, such as second generation resident ID card, military officer card, passport, etc., to the blood donation location. 2. Sign the relevant consent form and basic information: Donors need to read carefully the precautions and consent form for blood donation. At the same time, they also need to fill in their basic information, such as name, gender, date of birth, work unit and contact information. 3. Detecting blood type and physical examination: The donor’s blood type will be detected by fingertip blood, and the donor’s weight and blood pressure will be measured to evaluate whether the donor is able to donate blood. 4. Drawing blood: Generally, the range of blood drawn for adults is between 200~400ml. 5. Receive the blood donation card. Specific blood donation should be done under the guidance of a physician.