To provide a device for connecting both terminals of the bead wire of a tire bead which can improve the efficiency of work for connecting both terminals of the bead wire.

The device for connecting both terminals of the bead wire has a pair of cutters 2a, 2b, 3a, and 3b which face each other at a prescribed interval and cut the vicinities of the bead wire both terminals of the tire bead and a connecting tube holding member comprising a pair of half-parts in which a semi-cylindrical tube holding channel housing the connecting tube and a pair of semi-truncated cone-shaped guide channels with small diameter end parts connected to both ends of the tube holding channel are formed in the surface.