The objective of the invention is to allow a configuration, where a wire-holding bar is supported to be drivable in a back-and-forth movement between a wire-receiving position and removal position, to be easily assembled. The wire delivery device comprises: a bar support part; a mobile support mechanism supporting the bar support part to be movable back-and-forth; a drive mechanism for driving back-and-forth the bar support part; and a wire-end-hold setting part for sequentially setting a wire onto the wire-holding bar. The mobile support mechanism comprises: a mobile support part for supporting the bar support part; at least one guide rail; and an upper roller, a lower roller, and a pair of side rollers, each supported by the mobile support part so as to be rotatable. A gap is provided between the guide rail and the upper roller and/or between the guide rail and the lower roller. In addition, another gap is provided between at least one or both of the pair of side rollers, and both side surfaces of the guide