The invention belongs to the technical field of sleeping-aid devices, and particularly relates to a sleeping-aid method and device affecting brain wave. The technical purpose to be achieved is to provide the sleeping-aid method and device capable of effectively simulating the brain wave generating when a user sleeps with a better sleeping-aid effect affecting brain wave. The method comprises the steps an impulse wave executing instruction is saved; the impulse wave executing command is read, and an action instruction is output; the action instruction is executed to generate impulse wave; the impulse wave comprises sleeping-aid wave, spindle wave which is inserted in the sleeping-aid wave randomly or at intervals for 2 to 5 times each minute; the frequency of the sleeping-aid wave is 1 Hz-8Hz, wherein the initial frequency is 8 Hz, and the frequency diminishes to 1 Hz; the spindle wave has the frequency of 5 Hz-25 Hz.
Sleeping-aid method and device affecting brain wave