The fuel injection nozzle comprises a needle body on the end of the injection section for opening and closing the injector. Several opening plates are arranged on a downward running side of the injector section. The opening plates comprise a first plate having a first slit-formed hole through which fluid flows, and a second plate arranged on the downward flowing side of the first plate and having several second holes connected to part of the first holes. Each of the second holes has an upwards and a downwards flowing mouth which are eccentric formed.
