The motor controller test bench for motor inverter (controller) and motor for battery electric vehicle motor controller, hybrid electric vehicle motor controller and plug-in hybrid electric vehicle motor controller consist of: Load AC dynamometer (and drive dynamometer) Frequency converter for load AC dynamometer Battery simulator with bi-directional DC power supply Base frame including the plate and jig for load AC dynamometer (and drive AC dynamometer) Climate chamber which is the detachable constant temperature and humidity chamber Measuring system with power analyzer, torque sensor and DAQ device Operation program and control PC system Water cooling system Safety disconnection control system Wiring construction