Symptomatic epilepsy is a more common clinical disorder in neurology. The incidence of epilepsy in children is higher than that in adults, and about 1/4 of children with epilepsy eventually develop refractory epilepsy which leads to mental and psychiatric developmental delay and affects the normal development of children. Therefore, when medication is ineffective, early surgical treatment can not only stop refractory seizures, but also maximize psychomotor development and prevent further damage to the brain from recurrent seizures. So what should be noted about surgical treatment of epilepsy? This is mainly based on the complexity of epilepsy itself and the difficulty of locating the epileptogenic foci. In order to avoid the loss of important functions of patients after surgery, the boundaries between the epileptogenic foci and the functional brain area often need to be defined more precisely before the focal resection. The intracranial electrodes are in direct contact with the brain surface, so their resolution and accuracy are much better than the traditional scalp electrode EEG, which is like the difference between a few times magnifying glass and hundreds of times microscope. This is like the difference between a magnifying glass and a microscope. 2, the correct view of the complications of surgery Any surgery may be affected by some non-human factors and produce a variety of complications, especially epilepsy surgery is located in the important functional areas of the brain, so there may be limb and language dysfunction, intracranial hematoma, etc., after surgery. Actively cooperate with the doctor’s treatment. Many patients and family members mistakenly believe that after successful surgery, they do not need to take medication anymore, and the time to take medication regularly after surgery is less than 2 years. The total efficiency of epilepsy surgery (i.e., the rate of complete disappearance of seizures after surgery) is about 60-70% in regular epilepsy centers around the world. Some patients may not be effective or may worsen after surgery.