Whether or not dystonia can be restored as a result of brain injury depends on the specific primary condition that caused the hypotonia. In the case of low muscle tone caused by congenital hereditary neurological diseases, it is difficult to recover muscle tone, but it can be alleviated through effective treatment. If the hypotonia is caused by acquired central nervous system diseases such as cerebral infarction or cerebral hemorrhage, the hypotonia can be restored to a certain extent after active rehabilitation, but it cannot be completely restored to normal. Low muscle tone after brain injury can be treated by using physical factors such as bioelectric stimulation to stimulate local muscles and improve muscle tone. Acupuncture and moxibustion can be used to stimulate muscle contraction and enhance muscle tone. Muscle tone can be increased through exercise therapy such as functional active activity strengthening training, muscle strength and endurance training. It is recommended that patients with low muscle tone after brain injury under the guidance of a professional doctor and rehabilitator for targeted treatment and training to avoid delays.