Abstract: In order to meet the needs of classroom teaching and simple experiments, a traction and braking simulation testbed for metro train based on LabVIEW software was been designed and established. The test-bed was made up of a computer and a simulation device and its control program was developed by LabVIEW software. The sensor signal was collected by the input terminal of the data acquisition card and then transmitted to the computer. The control command was obtained by analysis and calculation, and sent to the actuator through the data acquisition card and serial port. After receiving the control command, the speed of three-phase AC motor was adjusted by the inverter, to simulate the traction process. The DC electric putter was controlled by the programmable power supply to simulate the braking process. The real-time state of the test-bed collected by sensors was returned to the computer to achieve closed-loop control and condition monitoring. The simulation of the acceleration, coasting and braking condition for metro train was accomplished by friendly man-machine interface and computer automatic control. Practices prove that the test-bed is stable and smooth when running. The combination of numerical simulation and physical simulation were implemented.