In general hospital EEG examinations, usually 10~16 sampling electrodes are placed on the scalp and the patient sits on a chair for 5~15 minutes to record the background information of the EEG, but it is difficult to record the most diagnostic value of the seizure EEG because of the short examination time. If by chance a seizure occurs, the patient can easily fall on the floor and get injured. At this time, the recording electrode is often detached from the scalp and the action interferes greatly, so the EEG cannot be accurately recorded, and there is no video equipment to record the process of seizure action, so the accurate diagnosis of epilepsy cannot be accomplished. As we know, the human brain has strict functional partitions, and the EEG and seizure action of epilepsy caused by lesions in different parts of the brain have correspondingly different performance. Therefore, when doing scalp EEG for epilepsy, it is required to accurately record the EEG of the patient during the seizure and interictal periods, and to clearly record the evolution of the patient’s seizure symptoms, to repeatedly play back the study, to determine the order and degree of involvement of each brain functional area in the seizure, and finally to determine the location and extent of the epileptogenic focus. In recent years, in specialized epilepsy centers, emphasis has been placed on the use of video EEG technology, that is, combining EEG tracing technology and camera technology, video recording while doing EEG, and standing up the EEG and video images of each moment one by one through software, allowing the simultaneous video recording of the patient’s seizures to be viewed while studying the EEG, greatly improving the understanding of seizure events and also It is relatively easy to shave off the interference of artifacts and exclude non-seizure events such as faking, hysteria, and psychosis. According to the number of sampling electrodes of EEG, it can be divided into 16-lead, 32-lead or 64-lead video EEG. When buried intracranial electrodes are used for cortical EEG video monitoring, 128-lead or 192-lead video EEG is generally chosen, and the number of sampling electrodes can also be flexibly selected according to actual needs. According to the number of cameras, it can also be divided into single-camera and dual-camera video EEG. The disadvantage of single-camera video EEG is that it either only looks at the general seizure or only looks at the partial seizure, which cannot be taken into account at the same time. Our epilepsy center has built the largest video EEG monitoring system in China, with 20 precision EEG machines all using the most advanced dual-camera video acquisition equipment in the world. One camera shoots the patient’s whole body uninterruptedly to observe the overall seizure situation, and the other shoots a partial one to better observe the subtle movements of the face and eyes during seizures, such as smacking the lips, blinking, eye deflection direction, etc. This allows for a more comprehensive and objective recording of the seizure process, analysis of the relationship between clinical and EEG, and improved epilepsy diagnosis.