To provide a wire feeding device which does not deteriorate feeding properties even when a conduit cable is bent by a postural change in a manipulator.

This wire feeding device draws a welding wire 7 from a position near a wrist part of an arc welding robot and delivers the welding wire 7 into an arc welding torch. The wire feeding device 1 comprises a first feeding part 11 provided with a first wire feeding roller 12 for drawing the welding wire 7 from the conduit cable, a second feeding part 21 provided with a second wire feeding roller 22 for delivering the welding wire 7, drawn by the first feeding part 11, into the arc welding torch, and a swinging part 31 for swinging the first feeding part 11 in the direction of stress received from the conduit cable. According to the wire feeding device, the conduit cable is moderately bent upon a postural change of an arc welding robot to smoothly feed the welding wire 7 into the arc welding torch.