【Objective】 To explore the value of video-electroencephalogram(long-term video-VEEG)in diagnosis of epilepsy in childhood. 【Method】 98 children diagnosed or suspected to be epilepsy were monitored with video-EEG instrument for 12~18 hours under the state of awaking and sleeping. 【Results】 The positive rate of epileptiform discharges in patients with epilepsy was 91.8%(90/98),44 seizures(44.9%,44/98) were recorded.52 of them were diagnosed as generalized seizures (53.1%,52/98),43 of them were partial seizures (43.9%,43/98) and 3 of them were non-classified(3.0%,3/98) seizures according to clinical symptomatology before long-term video-EEG monitoring.However,32 of them were diagnosed as generalized seizures(32.7%,32/98),31 of them were partial seizures(61.2%,60/98) and 4 of them were non-classified(2.0%,2/98) seizures according to ictal or interictal VEEG monitoring.58 of their epileptic seizure types were consistent and 40 were inconsistent after VEEG monitoring. 【Conclusion】 Clinical episodes with epileptiform discharge of long-term video-EEG monitoring have significant diagnostic value in classifying seizure types of children with epileptic seizure.