Most 3-year-old babies with epilepsy are associated with congenital developmental abnormalities, birth injuries or trauma, brain infections, and also some with primary epilepsy. There are more types of epilepsy, and their symptoms are different. The clinical symptoms of epilepsy in 3-year-old babies are as follows: 1. Small motor seizures: 3-year-old children mostly have myoclonic seizures, which are manifested by frequent nodding, a few can also tilt their heads or tilt their heads to the side, and some children have cold tremors and shivering; or bending over, flexing the limbs; or both upper limbs are flattened or raised, and the objects held in their hands can be thrown far away, and the seizures can last Seizures can last for several seconds, often in a continuous form. This type of epilepsy is often associated with intellectual disability, difficult treatment, and poor prognosis; 2. The seizures often start from one side of the face or pharyngeal muscles and manifest as twitching of the corners of the mouth and facial muscles, drooling, etc. The child is clearly conscious, but often cannot answer questions. These children grow well and the seizures usually end by the age of 12. In summary, the symptoms of epilepsy vary with each baby’s physique and degree of illness. Therefore, when there is a seizure, it is necessary to improve the EEG and cranial magnetic resonance examination in time to clarify the specific cause of epilepsy, and actively give relevant drugs to control the progress of the disease and prevent persistent status epilepticus and recurrence, so as to minimize the harm to the baby.