SUPPLY PIPE FOR VEHICLE GAS FUEL

In order to provide a supply pipe for a gaseous fuel for a vehicle, which can suppress an increase in cost and weight when suppressing a pressure pulsation of the gaseous fuel and can improve the degree of freedom of layout, a supply pipe (10) for a gaseous fuel for a vehicle is provided with a main pipe (12) through which a gaseous fuel to be supplied to an engine (E) mounted on a vehicle flows, and a sub-fuel tank (13) through which the gaseous fuel to be supplied to the engine (E) mounted on the vehicle flows. The auxiliary fuel tank (13) is separated from the main pipe (12), and the connecting component (14) connects the main pipe (12) and the auxiliary fuel tank (13). The sub-fuel tank (13) is connected to the main pipe (12) via a connection member (14). 为了提供一种能够在抑制气体燃料的压力脉动时抑制成本和重量的增加，并且能够提高布局自由度的车辆用气体燃料的供给配管，一种车辆用气体燃料的供给配管(10)，具有：主管道(12)，供向搭载于车辆的发动机(E)供给的气体燃料流通，副燃料箱(13)，与主管道(12)分体，以及连结构件(14)，将主管道(12)与副燃料箱(13)连结；副燃料箱(13)经由连结构件(14)与主管道(12)连结。