A method for producing a carbon fibre bundle is proposed having the following steps: provision of at least one precursor, mechanical stabilization of the at least one precursor, and subsequent introduction of the mechanically stabilized precursor into at least one thermal treatment device for converting the at least one precursor into at least one carbon fibre bundle. Moreover, a device for producing a carbon fibre bundle is proposed, having at least one oxidation furnace and a following carbonizing device for carbonizing a precursor to form the carbon fibre bundle, wherein a stabilizing device for mechanically stabilizing the precursor which is introduced into the oxidation furnace is connected upstream of the at least one oxidation furnace.