Fuel cell system having a fuel cell for generating electric power by a chemical reaction between hydrogen and oxygen

A fuel cell system includes a fuel cell (FC stack) (200), a Einstromkanalventil (505) which in a Wasserstoffeinstromkanal (505a) is provided, the FC stack is supplied by the hydrogen, and a Auslasskanalventil (506) which in a hydrogen outlet (506a) is provided by the hydrogen-containing gas is discharged from the FC stack in the form of exhaust gas. In the fuel cell, hydrogen in which the opening and closing of Einstromkanalventils and Wasserstoffauslassventils is controlled is intermittently supplied to the FC stack in accordance with the consumed in the FC stack amount of hydrogen.