A wire apparatus includes a sheath 45 arranged in an endoscope 1, a wire 22 inserted in the sheath 45 and configured to move in an axial direction or rotated in the sheath 45, and the wire 22 is configured such that processing of coating including a binder component is performed only to a range of the wire, the range being exposed from the sheath 45 and a powder lubricant which does not include the binder component is applied to at least a range of the wire, the range being inserted in the sheath 45.