Shaking feet in sleep is considered to be the result of disorders such as restless legs syndrome, hypocalcemia, and epilepsy. 1. Restless Legs Syndrome: This is a movement disorder that involves the nervous system of the patient’s legs or feet. Patients often experience discomfort such as numbness and burning in the lower limbs, accompanied by a stronger desire to move the legs. At the same time, most patients experience rhythmic limb movements of the legs or feet during sleep, which is manifested as shaking feet during sleep. 2. Hypocalcemia: This disease is a metabolic disease caused by low calcium ion levels in the patient’s body, leading to abnormal limb function, with common causes such as vitamin D deficiency and hypoparathyroidism. Patients often appear after the onset of muscle spasms in the face, legs and other parts of the body, accompanied by twitching of the hands and feet, generalized seizures and other symptoms, some of the patients in the night time onset of the disease will appear to sleep and feet shaking situation. 3. Epilepsy: This is a more common chronic clinical brain disease. The disease can be at any time throughout the day seizures, and different patients with different clinical symptoms of seizures, such as myoclonic seizures, focal motor seizures and other types of seizures at night seizures, will lead to patients to sleep foot shaking symptoms. There are many reasons why patients may experience shaking feet in their sleep, so it is recommended that they seek medical attention to determine the cause of the condition.