To provide a wire send-out device of simple structure as a whole in which control of the wire send-out tension can be made simple.

This wire send-out device is composed of a capstan device 4 which is fed with a wire 1 paid off from a send-out drum 2 and given an appropriate holding tension and is driven by a drive motor 42, a tension measuring pulley 5 installed downstream of the capstan device 4, a load cell 6 installed on the rotary shaft of the pulley 5 in such a way that the loading direction is approx. identical to the direction in which the wire send-out tension is applied, and a tension adjusting circuit which is installed between the load cell 6 and the drive motor 42 and includes a tension setting apparatus 9 and a CPU 8, whereby the drive of the motor 42 is controlled so that the wire send-out tension becomes identical to the tension set in the tension setting apparatus 9.