In order to develop the electric-pneumatic braking and electric braking capability for metro vehicle of Beijing metro line 8 II project, a verification test is very necessary. Firstly, the metro vehicle braking modes were briefly introduced, including electric braking, air braking and electric-pneumatic braking. Secondly, under the condition of different load level, speed level and brake level, the electricpneumatic loading test and passenger carrying test had been separately implemented in the metro vehicle. Eventually the electric braking capability of metro vehicle could be judged by calculating the electric braking force with measured parameters during the whole braking process. The results of passenger carrying test showed that electric braking capability could reach 113% of theoretical value under low load level (AW0), while it could only reach 93% of theoretical value under high load level (AW3); and the mean value of switching points of electric-pneumatic braking was 6.25 km/h. The test results have proved the electric-pneumatic braking and electric braking capability of this metro vehicle.