An electromagnetic fuel injection valve having such a configuration that an end face of a movable core that is engaged with an engagement portion of a valve body impacts with an end face of a stationary core due to an electromagnetic attractive force exerted when the valve opens, the fuel injection valve comprises: - the stationary core; and - a movable valve element that comprises the movable core, which is coated with a chromium film layer, wherein the chromium film layer is formed of a plated layer, and which has a cylindrical structure, and the valve body, which is formed separate from the movable core and retained on a central axis side of the movable core to reciprocate together with the movable core with the electromagnetic attractive force and a force of a return spring, wherein the valve body is configured to move independently of the movable core in a valve opening direction upon contact of said end face of the movable element with said end face of the stationary core, and a circular upper end face of a movable core base material is provided with a sloped surface on the central axis side of the movable core, the sloped surface sloping toward the central axis side of the movable core from a stationary core side to a movable core side, and one end face of the chromium film layer on the sloped surface impacts, as a first impact surface, with an end face of the stationary core and said impact surface has a flat surface with little slope, the other end face of the chromium film layer on the sloped surface sloping toward the central axis from the stationary core side to the movable core side, wherein a portion of the circular upper end face of the movable core, from an innermost point, is formed slightly higher than the other portion outside said slightly higher portion and the sloped surface is formed on said slightly higher portion; and the part of the movable core engaging the engagement portion as well as the first impact surface with the stationary core are both coated with a chromium layer. - the stationary core; and - a movable valve element that comprises the movable core, which is coated with a chromium film layer, wherein the chromium film layer is formed of a plated layer, and which has a cylindrical structure, and the valve body, which is formed separate from the movable core and retained on a central axis side of the movable core to reciprocate together with the movable core with the electromagnetic attractive force and a force of a return spring, wherein the valve body is configured to move independently of the movable core in a valve opening direction upon contact of said end face of the movable element with said end face of the stationary core, and a circular upper end face of a movable core base material is provided with a sloped surface on the central axis side of the movable core, the sloped surface sloping toward the central axis side of the movable core from a stationary core side to a movable core side, and one end face of the chromium film layer on the sloped surface impacts, as a first impact surface, with an end face of the stationary core and said impact surface has a flat surface with little slope, the other end face of the chromium film layer on the sloped surface sloping toward the central axis from the stationary core side to the movable core side, wherein a portion of the circular upper end face of the movable core, from an innermost point, is formed slightly higher than the other portion outside said slightly higher portion and the sloped surface is formed on said slightly higher portion; and the part of the movable core engaging the engagement portion as well as the first impact surface with the stationary core are both coated with a chromium layer. a circular upper end face of a movable core base material is provided with a sloped surface on the central axis side of the movable core, the sloped surface sloping toward the central axis side of the movable core from a stationary core side to a movable core side, and one end face of the chromium film layer on the sloped surface impacts, as a first impact surface, with an end face of the stationary core and said impact surface has a flat surface with little slope, the other end face of the chromium film layer on the sloped surface sloping toward the central axis from the stationary core side to the movable core side, wherein a portion of the circular upper end face of the movable core, from an innermost point, is formed slightly higher than the other portion outside said slightly higher portion and the sloped surface is formed on said slightly higher portion; and the part of the movable core engaging the engagement portion as well as the first impact surface with the stationary core are both coated with a chromium layer.