OBJECTIVE： To investigate the effects of Danshen chuanxiongqin injection combined with hyperbaric oxygen on the prevention of early complications in patients with acute spinal cord injury （ASCI）. METHODS： A total of 89 ASCI patients were divided into control group （n＝44） and combination group （n＝45） according to random number table. Control group received routine symptomatic treatment combined with hyperbaric oxygen therapy. Combination group was additionally given Danshen chuanxiongqin intravenous injection 10 mL added into 250 mL 0.9％ Sodium chloride injection intravenously，bid，on the basis of control group. Both group was treated for 2 weeks. The changes of spinal cord function recovery index （Botsford score， FIM score）， coagulation indexes [prothrombin time （PT）， activated partial thromboplastin time （APTT）]， hemodynamic indexes （high-shear blood viscosity， plasma viscosity， erythrocyte aggregation indexes） and inflammatory indexes [D-dimer （D-D）， C reactive protein （CRP）] were compared between 2 groups before and after treatment. After 1 month of follow-up， the incidence of early complications as deep venous thrombosis and pulmonary embolism were compared between 2 groups. RESULTS： Two cases lost in control group and three cases lost in combination group； 42 cases were included in each group. Before treatment，there was no statistical significance between these indexes between 2 groups （P＞0.05）. After 2 weeks of treatment， Botsford score， FIM score， PT and APTT of 2 groups were enhanced significantly compared to before treatment； high-shear blood viscosity， plasma viscosity， erythrocyte aggregation indexes， D-D， CRP level were decreased significantly compared to before treatment； each index of combination group was significantly better than those of control group， with statistical significance （P＜0.05 or P＜0.01）. The incidence of early complications in combination group was 16.7％， which was significantly lower than 35.7％ in control group， with statistical significance （P＜0.05）. CONCLUSIONS： The application of Danshen chuanxiongqin injection combined with  hyperbaric oxygen in the clinical treatment of ASCI can effectively reduce the risk of deep venous thrombosis， pulmonary embolism and other early complications. It has positive effects on alleviating inflammatory reactions， promoting blood microcirculation and improving prognosis of patients.