NOVELTY - The vehicle (14) has fuel cell that generates electric power by fuel gas and oxidant gas. Vehicle side communication device (34) is provided to housing on outer circumferential side of receptacle (28), and is provided to wirelessly communicate with nozzle side communication device provided to nozzle (22). Vehicle side communication device is arranged on deeper side than bottom face of bottom wall and is arranged through a partition wall provided to shield the vehicle side communication device from the fuel gas in inner space.    USE - Fuel cell vehicle.    ADVANTAGE - The fuel gas is prevented from reaching the vehicle side communication device, adverse effects such as degeneration due to hydrogen due to fuel gas can be reduced. The communication filling system makes up a filling line configured to perform fuel supply and a communication line configured to perform information communication by mutual connection between supply source and the vehicle. The nozzle can be connected to the receptacle without regulating a position in the circumferential direction as to the receptacle, with optional phase difference. Thus the operator can readily connect the nozzle to the receptacle at the time of performing filling operations. The vehicle side communication device is attached to the upward side of the receptacle, such that the vehicle side communication device can reduce effects of water and dust retained in the fuel inlet box. The fuel gas can be supplied according to the state of the vehicle side tank, and effective filling of fuel gas can be performed. The fuel gas is externally discharged along the curved portion without traveling to the upper side corner of the fuel inlet box, even when fuel gas leaks from the nozzle. The fuel gas is prevented from coming into contact with the vehicle side communication device. Sufficient wide radio transmission range can be formed, and a more secure communication line can be built between the supply side communication device and the vehicle side communication device. The front face of the vehicle side communication device is covered with the shielding cover. The fuel gas can be shielded by the shielding cover in a sure manner, even when fuel gas directly directs to the vehicle side communication device. The fuel gas can be prevented from continuously retaining to cause adverse effects on the vehicle side communication device. The vehicle can suppress effects of fuel gas using a layout position as to the fuel inlet box and the shielding cover, and reliability and durability of the vehicle side communication device can be improved. The shielding cover and lid portion can protect the vehicle side communication device from moisture, dust and impact. The fuel gas can significantly be suppressed from retaining in the fuel inlet box. The vehicle side communication device is attached to the rear face of the bottom wall, so that no need to be restricted to installation within the fuel inlet box. Hence flexibility of layout of the vehicle side communication device can be improved and visual appearance is improved.    DESCRIPTION OF DRAWING(S) - The drawing shows the perspective views of the fuel cell vehicle and a communication filling system for supplying fuel gas to fuel cell vehicle.    Hydrogen station (12)    Fuel cell vehicle (14)    Nozzle (22)    Receptacle (28)    Vehicle side communication device (34)