A visual evoked brain-computer interface method incorporating an asynchronous eye movement switch

The invention relates to a visual evoked brain-computer interface method combined with an asynchronous eye movement switch, which comprises the following steps: firstly, an electrode is arranged and an eye movement meter is installed; the eye movement meter is calibrated; then, a double-layer structure is constructed: an asynchronous eye movement switch interface of an upper structure and a visualevoked brain-computer interface of a lower structure; Then the collected EEG waves are recognized. In the lower structure, the computer records the start and end time of stimulation synchronously. And then determine whether to end the task or not; After multiple identification tasks, close the program and end the task; The invention combines the quick and sensitive eye position positioning with the visual evoked brain-computer interface, utilizes the asynchronous eye movement switch to increase the comfort degree of the user, and reduces the fatigue and cognitive load to a certain extent. 种结合异步眼动开关的视觉诱发脑机接口方法，先安放电极和安