An object of the present invention is to provide a fuel injection control device capable of improving the execution frequency and accuracy of individual difference detection of a plurality of fuel injection valves. Therefore, the fuel injection control device 127 is configured to measure, as a valve closing time, a time from when energization of the solenoid 407 is finished to when the valve body 402 moves to the valve closing position for each of the plurality of fuel injection valves 105; divide an energization time of the solenoid 407 into a plurality of sections 1001 to 1004; calculate, as an average valve closing time, an average value of the valve closing times measured a plurality of times, in each of the plurality of sections 1001 to 1004; calculate a specific valve closing time based on the average valve closing time of at least one section among the plurality of sections 1001 to 1004; and correct the energization time according to the specific valve closing time of each of the plurality of fuel injection valves 105.