Provided is a head photic stimulation device including: a brain wave amplifier which subjects the subject brain waves acquired using a brain wave sensor to A/D conversion and amplification; a control signal generation circuit which, based on an output signal from the brain wave amplifier, generates a control signal for controlling LED driving; and a light irradiation unit which is driven based on an output from the control signal generation circuit, and which includes an LED for irradiating a head. The control signal generation circuit includes a band-pass filter for filtering an input signal, a DSP (signal processing) unit for controlling a signal that has passed through the band-pass filter, and a light irradiation output unit using a near-infrared LED for irradiating the head. The DSP unit has a feedback function for matching a phase of a PWM output for controlling the light irradiation output unit, in synchronism with the subject brain waves.