Workpiece conveying device capable of smoothly performing delivery and receiving of workpieces between two feeders

The present invention is a workpiece conveying device, an object of which is to smoothly perform delivery and receiving of workpieces between two feeders in a configuration having a linear feeder and a disk feeder. The solution is a workpiece conveying device, comprising a deformable transport portion (10a) which is provided with a spiral bogie (10x) having a conveying bogie, and a progressive wave generating means (3) that generates a progressive wave to the transport portion (10a), wherein the progressive wave generated by the progressive wave generating means (3) conveys the workpiece (W) along the spiral bogie (10x), and in a parts feeder (PF) of a disc feeder (1) discharged from a workpiece discharge portion (10z), the workpiece discharge portion (10z) of the disc feeder (1) is configured to set a discharge direction (F0) which is a direction that intersects with the direction in which the progressive wave travels (close to a wire line (T) direction).