Folic acid is beneficial to the recovery of cerebral infarction patients, mainly because it can lower homocysteine, which is an independent high-risk factor for cerebral infarction, and hyperhomocysteinemia can aggravate the degree of atherosclerosis, thus easily causing cerebral vascular stenosis or occlusion and triggering cerebral infarction. Long-term supplementation of folic acid can help lower serum homocysteine levels and thus effectively prevent exacerbation of atherosclerosis. Folic acid can be supplemented through medication and food. In addition to folic acid tablets, foods rich in folic acid mainly include some vegetables and fruits, such as green vegetables, carrots, apples, grapes, kiwifruit, etc. The above foods can effectively replenish folic acid in the human body, thus reducing homocysteine levels and having a good effect on preventing recurrence of cerebral infarction.