NOVELTY - A fuel cell system comprises heating and mixing apparatus (1) of carbon-type compound as raw material and water which continues to crude hydrogen production apparatus (2), hydrogen separator (3) and fuel cell (4), crude hydrogen production apparatus which manufactures crude hydrogen, hydrogen separator which removes undesired substance in crude hydrogen by absorption to obtain highly purified hydrogen, and serial pipe line which is composed of catalyst filling pipe for crude hydrogen production and adsorption agent filling pipe for highly purified hydrogen production.    USE - Fuel cell system used as vehicular modified type fuel cell system for alkaline fuel cell, phosphoric acid fuel cell and solid oxide fuel cell. Can also be used as fuel cell power generating device for small household, medium-sized apartment houses and large-sized factory power supply.    ADVANTAGE - The fuel cell system improves comprehensive economical efficiency, energy saving, materials reduction and discard cost.    DETAILED DESCRIPTION - A fuel cell system comprises heating and mixing apparatus (1) of carbon-type compound as raw material and water provided in front of electric power generation basic path which continues to crude hydrogen production apparatus (2), hydrogen separator (3) and fuel cell (4), crude hydrogen production apparatus composed of three serial pipes, steam reforming reaction pipe, first stage reaction pipe and second stage reaction pipe which manufactures crude hydrogen when raw material flows through inside of pipe, hydrogen separator which removes undesired substance (carbon dioxide gas and trace amount carbon monoxide) in crude hydrogen by absorption to obtain highly purified hydrogen, and serial pipe line which is composed of catalyst filling pipe for crude hydrogen production and adsorption agent filling pipe for highly purified hydrogen production. The highly purified hydrogen is manufactured by implementing manufacture process and renewal process by turns among 2 series for every fixed time.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of the fuel cell system. (Drawing includes non-English language text).    Heating and mixing apparatus (1)    Crude hydrogen production apparatus (2)    Hydrogen separator (3)    Fuel cell (4)    Deoxygenation apparatus (5)