ObjectiveTo observe the clinical efficacy and safety of Lacosamide (LCM) monotherapy in treating Benign epilepsy with centro-temporal spikes (BECT) at children. MethodsThe present research included 57 children with BECT who were treated with LCM monotherapy in the Children's Hospital Affiliated to Soochow University from June 2020 to June 2021. Among them, 26 were males and 31 were females, with an average age of (7.5±2.3) years. Analyze the efficacy and adverse reactions of 1, 2, 4, 6, 9 and 12 months after LCM treatment. The starting dose of LCM was 2 mg/(kg·d); increased 2 mg/(kg·d) every seven days; and titrated up to 4 ~ 8 mg/(kg·d) in children with weight ≥30 kg and <50 kg; titrated up to 6 ~ 12 mg/(kg·d) in children with weight ≥11 kg and <30 kg.ResultThe total effective rate was 94.12%; the cumulative control rate after 12-month medication was 86.27%; and the retention rate was 89.47%. Those all showed a higher rate. ConclusionLCM is significantly effective to BECT with less adverse reactions and more safety. It has high clinical application value.