A nozzle plate for a fuel injection unit, comprising: a plurality of nozzle orifices placed to face a fuel injection nozzle of a fuel injection unit to allow passage of fuel injected from the fuel injection nozzle, wherein the nozzle orifice is connected to the fuel injection nozzle through a swirl chamber, a first fuel guide groove and a second fuel guide groove opened to the swirl chamber, characterized by the swirl chamber is shaped by bisecting an oval recess into a first semi-oval recess and a second semi-oval recess with respect to a major axis of the oval recess and deviating the first semi-oval recess and the second semi-oval recess from each other along the major axis as a surface side facing the fuel injection nozzle is seen in a plan view, the first fuel guide groove opening to a deviated part of the first semi-oval recess and the second semi-oval recess positioned in one end side of the major axis, the second fuel guide groove opening to a deviated part of the first semi-oval recess and the second semi-oval recess positioned in the other end side of the major axis, the first and second fuel guide grooves (18, 20) are formed such that the identical amount of fuel flows from the fuel injection nozzle to the swirl chamber, a swirl chamber side connecting portion of the first fuel guide groove and a swirl chamber side connecting portion of the second fuel guide groove are formed to be double-symmetrical with respect to a center of the swirl chamber, and an identical amount of the fuel flowing from the first and second fuel guide grooves (18, 20) to the swirl chamber is guided to the nozzle orifice while revolving inside the swirl chamber in an identical direction. a plurality of nozzle orifices placed to face a fuel injection nozzle of a fuel injection unit to allow passage of fuel injected from the fuel injection nozzle, wherein the nozzle orifice is connected to the fuel injection nozzle through a swirl chamber, a first fuel guide groove and a second fuel guide groove opened to the swirl chamber, characterized by the swirl chamber is shaped by bisecting an oval recess into a first semi-oval recess and a second semi-oval recess with respect to a major axis of the oval recess and deviating the first semi-oval recess and the second semi-oval recess from each other along the major axis as a surface side facing the fuel injection nozzle is seen in a plan view, the first fuel guide groove opening to a deviated part of the first semi-oval recess and the second semi-oval recess positioned in one end side of the major axis, the second fuel guide groove opening to a deviated part of the first semi-oval recess and the second semi-oval recess positioned in the other end side of the major axis, the first and second fuel guide grooves (18, 20) are formed such that the identical amount of fuel flows from the fuel injection nozzle to the swirl chamber, a swirl chamber side connecting portion of the first fuel guide groove and a swirl chamber side connecting portion of the second fuel guide groove are formed to be double-symmetrical with respect to a center of the swirl chamber, and an identical amount of the fuel flowing from the first and second fuel guide grooves (18, 20) to the swirl chamber is guided to the nozzle orifice while revolving inside the swirl chamber in an identical direction.