Magnesium supplementation for Tourette’s syndrome has no therapeutic effect, and improper use of magnesium may cause magnesium toxicity. Magnesium is mainly used for the prevention and treatment of hypomagnesemia, as a volumetric laxative for constipation; as a bile antispasmodic; and for ventricular tachycardia. Applying too much magnesium can lead to dehydration in the body. Hot flashes, dry mouth, nausea, vomiting and dizziness may also occur with the use of the drug. It is contraindicated in severe cardiac insufficiency, severe renal insufficiency, intestinal bleeding, acute abdomen, etc. The main treatment for Tourette’s syndrome is medication combined with psychological counseling. The main drugs are haloperidol, sulpiride, thiopride or risperidone, which should be started from a small dose and gradually increased to an effective dose, and after the symptoms are controlled, the dose should be gradually reduced and maintained for a period of time (3 months or longer), which can make many children return to normal. Tourette’s syndrome patients, should be standardized treatment under the guidance of a specialist, do not blindly self-medication, so as not to delay the condition.