The development status of injector flow performance test in the world was introduced. The significance of this research is very important in China. An advanced test device for the injector performance was developed, which provided great technical support to the improvement of the engine capability and emission. The device was composed of three systems, including sensors system, control system and action system. It could test static flow, dynamic flow, linearity, static and dynamic minimum operating voltage of 6 injectors at one time. The test time was less than 0.5 hour. According to the validation test, the device has the characteristics of high efficiency, precision and stability. It can be used both in plant and lab.