Transcranial magnetic stimulation is a safe and non-invasive technique to restore certain functions such as cognitive dysfunction and speech disorders by stimulating the excitability of nerve cells, compensating for necrotic nerve cells and balancing the excitability of the affected side and the healthy side through magnetic pulses acting on the central nerve. The treatment process is painless and effective for patients with motor dysfunction, cognitive dysfunction, speech disorders and emotional disorders. If the affected side of the brain is damaged, the excitability decreases, while the healthy side of the brain increases, the balance is broken and the gap increases. Transcranial magnetic stimulation helps stroke patients recover quickly by reducing the excitability of the healthy side and reducing the gap.