Hydrogen fuel production for fuel cell from methane gas is studied by using the plasma reforming technology which is eco-friendly method without generating harmful gas of carbon monoxide or carbon dioxide. Hydrogen production rate became larger as increasing input power and it became smaller with increasing methane gas flow. The highest hydrogen rate obtained about 30% by the plasma reforming under conditions of input power of 290 W and methane gas flow of 100 mL/min. Moreover, it was found that high hydrogen production was attainable by using the plasma reactor having wide gap for the velocity control of gas flow at higher input power region.