The invention discloses an automobile fuel gas injection valve. One end of an air outlet of a valve body is provided with an output gas distribution device, and the output gas distribution device comprises a shell, a gas distribution chamber arranged in the shell and at least one discharging channel communicated with the gas distribution chamber and located below the gas distribution chamber. Thevalve body is internally provided with a switching device for opening and closing the air outlet. The output gas distribution device further comprises a regulating device for regulating the output flow rate of the air outlet, the regulating device comprises a screwed plug, a nut and a screw rod, and one end of the screw rod passes through the screwed plug and is matched with the nut by a screw thread. In the invention, after entering through an air inlet, gas enters into the gas distribution chamber through the air outlet, and then the gas is supplied to a gas cylinder through a plurality of discharging channels from the gas distribution chamber, thus the vehicular fuel gas injection valve realizes the purpose of simultaneously injecting gas to a plurality of gas cylinders by one injectionvalve, and the injection process can not generate flow rate difference and has low energy consumption.