CRI100 high-pressure common rail injector tester function is used to drive common rail injector, while providing Bosch, Denso, Delphi and other common rail injector control signal to drive the high-pressure common rail injector to work, drive signal parameters can be carried out by the user according to their actual situation, and can be saved grouped for easy maintenance personnel to high-pressure common rail injector in working condition to judge different conditions and maintenance.