A fuel injection control device that is applied to a fuel injection valve including a valve body to open and close an injection hole to inject a fuel and an electric actuator that has an electromagnetic coil and a movable core to move by being attracted by an electromagnetic force generated by conducting the electromagnetic coil and operates the valve body for valve opening, the fuel injection control device to control a valve opening time of the valve body by controlling a conduction time of the electromagnetic coil and thus control an injection quantity injected per one time valve opening of the valve body, the fuel injection control device comprising: a detection unit to detect a current increase speed that is a speed of increasing an electric current flowing in the electromagnetic coil in accordance with the start of conducting the electromagnetic coil during partial lift injection in which the valve body starts valve closing operation before the valve body reaches a maximum valve opening position after the valve body starts valve opening operation; a correction value calculation unit (S12, S13) to calculate a correction value for a requested injection quantity that is the injection quantity required on the basis of the current increase speed detected by the detection unit; and a conduction time calculation unit to calculate the conduction time of the electromagnetic coil during the partial lift injection on the basis of the requested injection quantity corrected by the correction value, wherein the correction value calculation unit includes an offset correction quantity calculation unit to calculate an offset correction quantity to correct the requested injection quantity by adding the offset correction quantity to or subtracting the offset correction quantity from the requested injection quantity on the basis of the current increase speed, and a correction coefficient calculation unit to calculate a correction coefficient to correct the requested injection quantity by multiplying the requested injection quantity by the correction coefficient on the basis of the current increase speed, wherein the current increase speed detected by the detection unit decreases as a temperature of the electromagnetic coil rises, the correction coefficient calculation unit is configured to set the correction coefficient at a lower value as the temperature of the electromagnetic coil rises, and the offset correction quantity calculation unit is configured to set the offset correction quantity at a higher value as the temperature of the electromagnetic coil rises. a detection unit to detect a current increase speed that is a speed of increasing an electric current flowing in the electromagnetic coil in accordance with the start of conducting the electromagnetic coil during partial lift injection in which the valve body starts valve closing operation before the valve body reaches a maximum valve opening position after the valve body starts valve opening operation; a correction value calculation unit (S12, S13) to calculate a correction value for a requested injection quantity that is the injection quantity required on the basis of the current increase speed detected by the detection unit; and a conduction time calculation unit to calculate the conduction time of the electromagnetic coil during the partial lift injection on the basis of the requested injection quantity corrected by the correction value, wherein the correction value calculation unit includes an offset correction quantity calculation unit to calculate an offset correction quantity to correct the requested injection quantity by adding the offset correction quantity to or subtracting the offset correction quantity from the requested injection quantity on the basis of the current increase speed, and a correction coefficient calculation unit to calculate a correction coefficient to correct the requested injection quantity by multiplying the requested injection quantity by the correction coefficient on the basis of the current increase speed, wherein the current increase speed detected by the detection unit decreases as a temperature of the electromagnetic coil rises, the correction coefficient calculation unit is configured to set the correction coefficient at a lower value as the temperature of the electromagnetic coil rises, and the offset correction quantity calculation unit is configured to set the offset correction quantity at a higher value as the temperature of the electromagnetic coil rises.