A fuel cell apparatus includes an electric power generation unit with a plurality of membrane electrode assemblies each having an oxidizer electrode to which an oxidizer is fed and a fuel electrode to which a fuel is fed, the oxidizer electrode and the fuel electrode being arranged through an electrolyte membrane. The plurality of membrane electrode assemblies are stacked through a fuel feed path and an oxidizer feed path. In addition, a fuel storage unit holds the fuel to be fed to the fuel electrode of the electric power generation unit, and a fuel flow path connects the fuel storage unit and the electric power generation unit. The fuel feed path and the oxidizer feed path arranged between the plurality of membrane electrode assemblies are formed by an elastic material.