Inclusion Criteria:  Acute ischemic stroke with the first onset, or a history of cerebral infarction but with a modified Rankin Scale (mRS) score ≤1, onset within 72h; CT examination to rule out cerebral hemorrhage; With clear signs of nervous system positioning, the National Institutes of Health Stroke Scale (NIHSS) score ≥ 4  Exclusion Criteria:  Diseases with bleeding tendency; Liver and kidney dysfunction; Malignant tumors or those undergoing anti-tumor treatment; Allergic physique, allergic to aspirin or Salvianolic Acid; Heart failure, multiple system failure; Pregnant or breastfeeding women