Objective,2,To observe the efficacy of acupuncture combined with trimetazidine in the treatment of radial artery injury related to coronary angiography based on color doppler ultrasound.,Methods,2,A total of 86 patients with radial artery injury related to coronary angiography were included and randomly divided into the control group and the treatment group， 43 cases in each group. All the included patients were treated with transradial artery angiography， and were orally treated with trimetazidine after operation. Based on above， the patients in the treatment group were treated with acupuncture after operation. The treatment course of the two groups was 15 days. The clinical effect was evaluated after 15 days of treatment. Before （on the day after operation） and after treatment （after 15 days of treatment）， the radial artery internal diameter， end diastolic velocity （EDV）， peak systolic velocity （PSV）， resistance index （RI） and pulsatility index （PI） were detected by doppler ultrasound instrument. Before and after treatment， the prothrombin time （PT） and activated partial thromboplastin time （APTT） were detected. In the course of treatment， the complications were observed and recorded， and the incidence of the complications was calculated.,Results,2,①After treatment， the total clinical effective rates of the treatment group and the control group were 90.70% and 74.42% respectively， and the effect of the treatment group was better than that of the control group （,P,<,0.05）. ②After treatment， the radial artery internal diameter in the two groups was significantly increased compared with that before treatment （,P,<,0.05）， and the radial artery internal diameter of the treatment group was obviously greater than that of the control group （,P,<,0.05）； the EDV and PSV of radial artery in the two groups were significantly accelerated compared with those before treatment （,P,<,0.05）， the RI and PI of radial artery blood flow were significantly decreased compared with those before treatment （,P,<,0.05）， and the EDV and PSV of radial artery in the treatment group were obviously faster than those in the control group （,P,<,0.05）， the RI and PI of radial artery blood flow were obviously less than those in the control group （,P,<,0.05）. ③After treatment， the PT and APTT in the two groups were significantly prolonged compared with those before treatment （,P,<,0.05）， and the PT and APTT of the treatment group were obviously longer than those of the control group （,P,<,0.05）. ④The incidence of the complications was 11.63% in the treatment group and 37.21% in the control group， and the incidence of the complications in the treatment group was lower than that in the control group （,P,<,0.05）.,Conclusion,2,Acupuncture combined with trimetazidine can effectively improve the vascular elasticity of radial artery after coronary angiography， accelerate the blood flow velocity of radial artery， inhibit the thrombogenesis， and relieve vasospasm， thus reduce the incidence of complications including radial artery stenosis and occlusion and enhance the clinical efficacy.