A solenoid valve device according to an aspect of an embodiment includes a solenoid valve, a determination unit, a setting unit, and a correction setting unit. The solenoid valve is provided on a fluid channel with a fluid passing there through and adjusts a flow rate of the fluid. The determination unit determines a target degree of valve opening of the solenoid valve. The setting unit sets a driving signal for driving the solenoid valve in such a manner that a degree of valve opening of the solenoid valve is the target degree of valve opening. The correction setting unit sets a differential pressure correction signal for driving the solenoid valve in accordance with a differential pressure on the fluid channel between a front and a back of the solenoid valve.