HYDROGEN PRODUCTION APPARATUS

A hydrogen production apparatus of the present disclosure includes: a gas supply unit that supplies a first hydrogen-containing gas containing hydrogen; a first electrochemical device having a first anode side inlet to make the first hydrogen-containing gas flow in and a first cathode side outlet to make a second hydrogen-containing gas having a higher concentration of hydrogen than the first hydrogen-containing gas flow out; and a second electrochemical device having a second anode side inlet to make the second hydrogen-containing gas flow in and a second cathode side outlet to make a third hydrogen-containing gas having a higher concentration of hydrogen than the second hydrogen-containing gas flow out. It is configured such that the ratio of the pressure value of the third hydrogen-containing gas at the second cathode side outlet to the pressure value of the second hydrogen-containing gas at the second anode side inlet is higher than the ratio of the pressure value of the second hydrogen-containing gas at the first cathode side outlet to the pressure value of the first hydrogen-containing gas at the first anode side inlet.