The 24-hour ambulatory electroencephalography monitoring (AEEG) of 315 children with various paroxysmal diseases were monitored. Among them 224 cases (71.11%) were lightly abnormal including 142 cases (45.08%) recorded as epilepsy burst; the absence seizures and convulsions were the highest positive rates in these patients who have been recorded epilepsy burst. We found that AEEG was more accurate to get abnormal burst wave or epilepsy burst wave than EEG. These data may indicate that AEEG is more accurate in children with paroxysmal diseases.