The present invention relates to a device and a method for inducing the promotion of cerebral blood circulation by using PINS to stimulate nerve endings distributed in the epidermal layer or the dermal layer below the skin surface of a carotid artery counterpart or a vertebral artery counterpart of the neck, thereby relaxing blood vessels of the brain. The device for inducing the promotion of cerebral blood circulation, according to the present invention, comprises: a beam emitter including a light source and emitting, according to a beam emission control signal, light at a carotid artery counterpart or a vertebral artery counterpart, which is at the skin surface of the neck in an area including a carotid artery and a vertebral artery for supplying blood and oxygen to the brain； and a beam emission control device for generating the beam emission control signal and transmitting the same to the beam emitter according to setting data including a beam emission time. The beam emitter stimulates the nerve endings distributed in the epidermal layer or the dermal layer below the skin surface of the carotid artery counterpart or the vertebral artery counterpart by emitting light for a preset beam emission time, so as to induce the secretion of a nitric oxide-containing material in nitrergic nerve terminals connected to the stimulated nerve endings and the nervous system, and to allow the secreted material to relax the blood vessels and lymph vessels coming in contact with the nitrergic nerve terminals such that the promotion of cerebral blood circulation and the promotion of lymphatic circulation are induced, and thus oxygen and nutrition are promoted in damaged cells, such as astrocytes, that are responsible for the function of the brain clearance system, thereby slowly restoring the function of the damaged brain clearance system, such that accumulation of amyloid beta plaque is inhibited.La présente invention concerne un dispositif et un procédé pour induire la stimulation
