A linear solenoid driving device that drives a linear solenoid, the linear solenoid driving device includes a driving circuit that performs switching control over a switching element connected to the linear solenoid based on a driving command; a current detection circuit that has a detection resistor which is connected to the switching element and the linear solenoid, and detects a current, and an operational amplifier which amplifies a voltage across both ends of the detection resistor and outputs the amplified voltage; a reference voltage output circuit that outputs a reference voltage which has a same temperature characteristic as an output voltage of the operational amplifier; and a control unit.