Recent years, the electric vehicle is developing very fast, motor controller unit(MCU) is a major part and plays a very import role in electric vehicle . The testing of the motor controller is very important, the automatic test system of electric vehicle MCU produced by Pansino Company based on “flexible testing” technology, which can dock with the production line to realize the UUT automatic test, and support different kind of MCUs. This testing system is suitable for evaluating、analysis、testing in MCU producing.