ObjectiveTo observe the clinical effect of Lacosamide (LCM) in the treatment of children with intractable epilepsy.Methods41 cases of refractory epilepsy patients who received LCM from March to July 2019 in department of Neurology, General Hospital of Henan Province were collected which included 21 males, 20 females, age were 4.6 ~ 15.5 years, average (7.21±3.06) years, And the efficacy of LCM was observed through blank control study.ResultsAfter LCM was added to the blank self-control group, the frequency of epileptic seizures was significantly reduced during the follow-up period of 3 months and 6 months, with statistically significant difference (P<0.05), and the mental state of the children was effectively improved, but there was no statistical significance between focal refractory epileptic seizure and comprehensive refractory epileptic seizure (P>0.05).ConclusionsLCM is a new kind of the third generation of antiepileptic drug. The addition use of LCM can effectively reduce the seizure frequency and improve mental state in children with refractory epilepsy.