A brain wave-based information processing method and device, and an instant messaging client, relating to the technical field of information processing. The brain wave-based information processing method comprises the following steps: obtaining operation information of triggering information recording by a user (S100); acquiring a brain wave signal of the user when the user records information (S200); identifying thinking information corresponding to the brain wave signal as associated information of the information (S300); and outputting the associated information and the recorded information together, or performing deduction on the associated information and the recorded information to obtain an information output that accords with the emotion of the user (S400). By using the method, a brain wave signal of a user can be acquired when the user records information, and thinking information corresponding to the brain wave signal is obtained as associated information for output, so that the convenience, intelligence, and interestingness of information processing are improved.
BRAIN WAVE-BASED INFORMATION PROCESSING METHOD AND DEVICE, AND INSTANT MESSAGING CLIENT