Provided is a core cord-feeding device (10) for a coil element-forming device (100), the core cord-feeding device (10) allowing the easy replacement of a core cord bobbin (B) and the improvement of productivity. A core cord-feeding device (10) is provided with: first and second drive shafts (25a, 25b) which are rotatably supported by facing side walls (21a, 21b), respectively; and a bobbin support section (30) which is disposed between the first and second drive shafts (25a, 25b). The bobbin support section (30) is provided with a bobbin holder (33), the base end of the bobbin holder (33) is mounted to the first drive shaft (25a) through a hinge section (65), and the bobbin holder (33) is rotatable about the hinge section (65) in the direction in which the front end of the bobbin holder (33) moves away from the second drive shaft (25b).