Fuel injection valve

In a fuel injection valve, a fuel guide member facing the valve hole is connected to an injector plate, and an annular diffusion chamber is formed between a valve seat member and the injector plate. A pair of first notches, a pair of second notches, and a plurality of closing parts are formed in an outer periphery of the fuel guide member. The first notches are arranged on a first diameter line of the valve hole. The second notches are arranged on a second diameter line perpendicular to the first diameter line. The closing parts are provided between the first and second notches to partially close the valve hole. A plurality of fuel injection holes are dispersally arranged in outside regions corresponding to the closing parts and inside regions corresponding to the first notches. A first tip end corner of the closing part adjacent to the first notch is formed into an edge shape or a minute arc shape, while a second tip end corner of the closing part adjacent to the second notch is formed into a large arc shape. Thus, it is possible to reduce a particle size of injected fuel and improve penetrability.