INJECTOR CONTROL DEVICE

Provided is an injector control device which is capable of setting a preceding injection amount to a fuel injection amount that is less than a main injection amount, while suppressing situations where preceding injections executed prior to a main injection in multi-stage injection are eliminated. An injector control device includes: an injection amount setting unit that sets, as a total injection amount, a total of fuel injection amounts in multi-stage injection in a single cycle, and sets, as a preceding injection amount, a fuel injection amount in a preceding injection executed prior to a main injection in the multi-stage injection; an energization period setting unit that sets an energization period of an injector based on the fuel injection amounts set by the injection amount setting unit ; and an injector driving unit that controls driving of the injector based on the energization period set by the energization period setting unit . The injection amount setting unit sets a fuel injection amount that is a predetermined percentage of the total injection amount as the preceding injection amount.