A disposable medical vein-pressing tourniquet. One end of a flexible elastic band (1) is provided with a lateral rectangular hole (14) or a hanging ring (12). The back side (13) of the other end is provided with the loop fastener or the hook fastener (5) of a touch fastener. A hook fastener or a loop fastener (4) that matches and fastens with the loop fastener or the hook fastener (5) of the touch fastener is disposed between the rectangular hole (14) and the loop fastener or the hook fastener (5), or is disposed between the hanging ring (12) and the loop fastener or the hook fastener (5). The front side (11) of the flexible elastic band is provided with an adhesive bandage (2) that stops bleeding and protects wounds. The external surface of the adhesive bandage (2) is provided with a thin protection film (3). The disposable medical vein-pressing tourniquet is suitable for human blood collection, and can collect blood, press on the vein, and stop bleeding. The invention is simple in structure, low in manufacturing cost, and easy to use. Said tourniquet reduces the environmental visual impact of the person, whose blood is being collected, having arms exposed for a long period and the risk of contracting diseases such as a cold, thereby reducing cross infections for the person, whose blood is being collected, from the diseases and viruses of other patients.Linvention concerne un tourniquet de pressage de veine médical jetable. Une extrémité dune bande élastique flexible (1) comprend un trou latéral rectangulaire (14) ou un anneau suspendu (12). Le côté arrière (13) de lautre extrémité comprend une fixation à boucle ou une fixation à crochets (5) dune fixation tactile. Une fixation à crochets ou une fixation à boucles (4) qui correspond et se fixe à la fixation à boucles ou à la fixation à crochets de la fixation tactile est disposée entre le trou rectangulaire (14) et la fixation à boucles ou la fixation à crochets (5), ou est disposée entre lanneau suspendu (12) et l
