For the solution of the global warming issue, the popularization of the hydrogen fuel cell vehicle has been starting in these several years. The hydrogen gas should be filled to the car fast and safely in hydrogen refuelling stations. However, when the filling gas is pressured into the tank, it is feared that the temperature of the hydrogen gas rises. Then, we changed the speed and the pattern of the filling and measured the gas temperature of various parts in the tanks of type 3 and type 4. This paper describes the thermal behavior in hydrogen storage tank on fast filling. As the filling time became shorter, the gas temperature rise after filling increased in comparison with that before filling, and the temperature differences among various points in the gas inside the vessel became smaller.