The invention consists of a tube syringe holding device for blood collection and for producing vacuum into the tube which target is to enable the collection of blood, that can be manufactured in a light material where two bodies, one of them cylindrical and the other semi-cylindrical, both hollow and of the same length, form one structure. Its bottom ends are opened. The top end of the cylindrical body is continued by a conduit with a male luer adapter, and the top end of the semi-cylindrical one is continued by two conduits with threads.