To distribute accurately weighed fuel to plural fuel injection valves by arranging an equal-sized second weighing hole to weight fuel distributed and supplied by a fuel supply passage, in the fuel injection valves to which the fuel passing through a first weighing hole is distributed and supplied.

A fuel injection device 1 is provided with fuel injection valves 4 to inject fuel supplied through a fuel pipe 3 from a fuel distributing device 2 into an intake air part of an engine, and is provided with a regulator 6 to adjust pressure of high pressure fuel, which is taken inside the device from a fuel inflow pipe 5 by being pressurized by a fuel pump, in a specific range. The pressure adjusted fuel is supplied to a valve chamber 8 of a solenoid valve 7, and a flow rate of the fuel coming out of a disc valve 11 is weighed by a first weighing hole (an orifice 14), and is derived to the fuel injection valves 4. An orifice 4g as a second weighing hole to inject the fuel of an equivalent from the respective fuel injection valves 4, is interposed in the fuel injection valves 4, and therefore, a proper quantity of fuel can be supplied to respective cylinders.