Children with a diagnosis of anti-NMDAR encephalitis occupied 95.2%(119/125),based on clinical manifestations and detection of NMDAR-IgG in the CSF and/or serum; and the number of patients with anti-NMDAR encephalitis who showed myelin oligodendrocyte protein(MOG)-IgG seropositive and paraneoplastic antibodies seropositive was 12 and 7, respectively. Here, MOG is linked to viral encephalitis.