The invention relates to a method for producing a tube (4) by injection moulding a thermoplastic moulding compound by using an injection-moulding device (1) with an article cavity (3), which defines the outer contour of the tube (4), and with an injection device, which is designed to drive a profile (5) through the article cavity (3) filled with the thermoplastic moulding compound and thereby displace a liquid core of the moulding compound, wherein the method envisages closing an opening of the article cavity (3) with a mould core (7), which with the article cavity (3) forms a hollow mould space and which has a secondary cavity that can be filled with the moulding compound. After the filling of the article cavity (3) and the hollow mould space with the thermoplastic moulding compound, a projectile is driven through the article cavity (3), wherein the projectile (5) displaces the moulding compound into the secondary cavity. Subsequently, the mould core (7) with the filled secondary cavity is pulled, wherein the displaced moulding compound is separated from the moulding compound forming the tube (4). The invention also relates to an injection-moulding device for carrying out the method (Figure 1).