A hydrogen production apparatus includes a burner, a combustion tube provided so as to surround flame of the burner, a reforming unit provided so as to surround the tube, an exhaust gas flow path provided so as to pass through between the tube and the unit, fold back at the other side of the unit, and extend through outside of the unit on a predetermined side, a low temperature shift unit provided on one of inside and outside of an extending portion of the flow path that extends on the predetermined side so as to extend along the extending portion, and a preferential oxidation unit provided on the other of the inside and the outside of the extending portion so as to extend along the extending portion.