Objective:To investigate whether partial sleep deprivation increases the detection rate of epilepsy in children by dynamic electroencephalogram(dEEG). Methods:Sixty-eight cases of children with suspected epilepsy in our hospital from March 2017 to August 2018 were firstly detected by routine electroencephalogram(rEEG) and dEEG. Two weeks later, all children were deprived of 3-5 hours of sleep before rEEG and dEEG. Detection rates of rEEG and dEEG were compared between normal sleep and partial sleep deprivation. Results:There was no significant difference in the detection rate of non-specific abnormality between rEEG and dEEG in 68 suspected epileptic children without sleep deprivation and partial sleep deprivation(P>0.05), and there was no significant difference between the two groups(P>0.05). But there was a significant difference between epileptiform discharge and total abnormal detection rate(P<0.05). In terms of epileptiform discharge, non-specific abnormality and total abnormal detection rate, there was no significant difference between sleep deprivation and partial sleep deprivation in rEEG recording results(P>0.05), but there was no significant difference between non-sleep deprivation and partial sleep deprivation(P>0.05). The results of dEEG showed that although there was no significant difference in non-specific abnormal detection rate between the two periods, there was a significant difference in epileptiform discharge and total abnormal detection rate between the two periods(P<0.05). Conclusion:Partial deprivation of sleep does not affect the rEEG tracing results of the epileptic children, butimproves the detection rate of the dEEG detection on the epileptiform discharge and the total abnormality, and is worthy of clinical popularization.