Parkinson's disease (PD) is a common slow progressive dyskinesia disease in middle-aged and elderly people. In addition to typical motor symptoms such as ankylosis, bradykinesia and tremor, PD also shows non-motor symptoms (Non-motorSymptoms, NMS) such as depression, anxiety and cognitive impairment, which seriously affect the quality of life and physical and mental health of patients. In recent years, repetitive transcranial magnetic stimulation (rTMS), as a non-invasive brain stimulation technique, uses the principle of electromagnetic induction to produce magnetic field changes in the brain to induce current, stimulate the central or peripheral nerves, and cause nerve excitatory activity, thus effectively interfering with motor symptoms and non-motor symptoms of PD patients has been proved. This article reviews the application of transcranial magnetic stimulation in Parkinson's disease and expounds its mechanism so as to provide theoretical basis for clinical treatment.