Abstract: Objective To study the feasibility of combined coronary angiography and right cardiac catheterization through right upper extremity. Methods Forty patients suspected of pulmonary hypertension after coronary arteriography and left ventricular imaging through the right radial artery in our department were randomly divided into treatment group and control group（20 in each group）.Patients in treatment group received standard right cardiac catheterization through the right upper extremity vein and those in control group underwent standard right cardiac catheterization through femoral vein.Those in treatment group who failed in upper extremity vein puncture were transferred to femoral vein puncture. Results No significant difference was found in the success rate of puncture,sheath feeding pipe and tube,and vein occlusion rate and right cardiac catheterization value between the two groups（P＞0.05）.The disinfection-puncture time,hemostatic time,postoperative bed rest time,complication,and postoperative hospital stay time were（5.3±2.6） min,（5.5±3.2） min,（1.0±1.6） h,（1.2±2.7） d in treatment group,which were significantly different from those in control group（P＜0.01）.The satisfaction degree was higher in treatment group than in control group（P＜0.01）. Conclusion Combined coronary arteiography and right cardiac catheterization through the right upper extremity is a simple,safe and feasible procedure for right cardiac catheterization after coronary arteiography.