In a poultry processing apparatus, a workpiece which is poultry with a body part and a pair of wing parts is conveyed while being supported by a fixing jig. A pair of cutters is disposed respectively on both sides of a conveyance path of the fixing jig. Further, a pair of guide members extends along the conveyance path, and the pair of wing parts of the workpiece supported by the fixing jig is guided from below by the pair of guide members to allow the pair of cutters to access side portions of the body part between the body part and the pair of wing parts.