Hypotonia is a manifestation of pediatric cerebral palsy. There are two common types of hypotonia: 1. Idiopathic hypotonia: the child lacks the ability to stretch against gravity, the child is in a hypotonic state, and the child has low voluntary motor function. Due to hypotonia, the child often lies in a supine position with the limbs abducted and externally rotated, forming a frog-like posture. This type of cerebral palsy is less common and is often associated with mental retardation. It can be cured by early treatment. 2.Another symptom of hypotonia: the increase of muscle tone is often aggravated by force and excitement, and the hypotonia is low when quiet. The upper extremities exhibit flexion and internal rotation of the elbow joint, flexion and abduction of the wrist joint, arch dorsiflexion of the trunk, stiffness and uncoordination of the upper extremities, especially asymmetrical bilateral limbs in a twisted position when muscle tension is present. This hypotonic type is only a transitional type and can be gradually replaced by the hypertonic type (spastic type) as it grows older. The treatment effect is poor. Early detection two months before treatment is more effective.