Cerebral palsy (CP) was first discovered by Little in England in 1841, and Burgess first applied the term cerebral palsy in 1888, and the first symposium on cerebral palsy in China in 1988 defined the time of brain damage in the definition of cerebral palsy as before birth to within one month after birth. The definition of cerebral palsy was revised in 2006 by the National Pediatric Palsy Conference, which refers to the syndrome caused by non-progressive brain injury and developmental defects from conception to infancy, mainly manifesting as movement disorders and postural abnormalities. With the improvement of obstetric technology, perinatal health care medicine and neonatal emergency medicine, the incidence of neonatal mortality and stillbirth has gradually decreased, and the survival of preterm, very low weight and perinatal critically ill neonates has increased, and the incidence of pediatric cerebral palsy has increased. II. The concept of early cerebral palsy Because of the serious neurological sequelae caused by cerebral palsy, it is especially important to introduce the concept of early diagnosis of cerebral palsy to alleviate and prevent neurological sequelae. Early diagnosis of cerebral palsy refers to the diagnosis of cerebral palsy in infants aged 3 to 9 months, where the diagnosis between 0 and 3 months is also called ultra-early diagnosis. Early diagnosis is mostly diagnosed as zenetralecoordination storung (ZKS), or brain damage syndrome (BDS). In clinical rehabilitation, this diagnosis is actually an early diagnosis of children at risk for cerebral palsy or children at risk for brain injury with high-risk factors. Its significance is not necessarily a definitive diagnosis of cerebral palsy, but a judgment of whether it should be used as a target for early rehabilitation. Early diagnosis and evaluation of cerebral palsy 1. Early diagnosis criteria of cerebral palsy: the brain injury causing cerebral palsy (cerebral palsy for short) is non-progressive; the lesion causing motor disorder is in the brain; the symptoms appear in infancy; sometimes combined with mental retardation, epilepsy, perceptual disorder and other abnormalities; except for central motor disorder caused by progressive diseases and temporary motor development delay in normal children. The diagnosis of cerebral palsy in children at risk is based on (1) high-risk factors in pregnancy and perinatal period. Such as neonatal asphyxia, hyperbilirubinemia, low birth weight, prematurity, multiple births, etc. Special attention should be paid to the presence of apnea, convulsive seizures, hypotonia, lack of hugging reflex or lack of hand and foot grasping reflex in the neonatal period, if sure, it should be considered as severe disorder. (2) Delayed and abnormal motor development. Generally 6 months is the critical month for detecting motor developmental delays and abnormalities. Once infants with high-risk factors do not reach normal motor developmental milestones, they should be alerted to the presence or absence of cerebral palsy. (3) Abnormal postural reflexes. In addition to the Vojta postural reflex, residual primitive reflexes from the neonatal period are seen. (4) Abnormal muscle tone and pathological posture. 4-5 month old children with cerebral palsy may see pathological postures, such as abnormal muscle contraction states, which manifest as muscle hypertonicity, hypotonicity, waviness, and uncoordinated muscle contractions. (5) Abnormal brainstem evoked potentials. It can be divided into brainstem auditory evoked potentials, visual evoked potentials and somatosensory evoked potentials. Among them, auditory evoked potentials can detect damage in the auditory nerve pathway of children with cerebral palsy quite sensitively, and is one of the important criteria for the diagnosis of ultra-early cerebral palsy. Visual evoked potentials suggesting optic nerve atrophy are also an important reference indicator for the diagnosis of ultra-early cerebral palsy. (6) Magnetic resonance imaging (MRI) or cranial CT examination has imaging abnormalities of the brain. The following assessment scales are commonly used for the early diagnosis and efficacy assessment of cerebral palsy. The application of these scales provides a reliable basis for the diagnosis of the disease, the development of the rehabilitation plan and the evaluation of the rehabilitation effect. 3.Neuromotor development evaluation Gesell neurodevelopmental assessment: It is suitable for the diagnostic examination of infant and child intellectual development from 0 to 3 years old. The developmental quotient (DQ) indicates the level of intelligence development of infants and toddlers, mainly including social adaptation, personal socialization, gross motor, fine motor and language.