To provide a fuel feeding system which can efficiently feed fuel to an engine, while utilizing two pressure sources.

In a fuel feeding system, two pressure sources are selectively controlled, for feeding engine combusting fuel from a tank to an engine. In such a system, the fuel is fed from the fuel tank to a main fuel supplying line through a pair of fuel supplying passages, and then fed to the engine. A first fuel flow passage is arranged inside the fuel tank, and led to an outlet of a fuel pump. A second fuel flow passage is arranged independently of the fuel pump inside the tank, so as to make the fuel flow from the fuel tank to the main fuel supplying line. Preferably, a valve is arranged on the second fuel flow passage, for selectively allowing the fuel to flow therethrough. This fuel feeding system has a controller for selectively supplying power of the fuel pump. The fuel pump inside the fuel tank is actuated only at necessity.