Digital multimeter automatic calibration system

The utility model relates to the technical field of multimeter automatic calibration, and discloses a digital multimeter automatic calibration system, which comprises a base, a mounting cavity is arranged in the base, the inner wall of the mounting cavity is rotatably connected with a rotating rod, the upper end of the rotating rod extends out of the base and is fixedly connected with a rotating plate, and the rotating plate is fixedly connected with the mounting cavity. The upper side wall of the rotating plate is fixedly connected with a mounting cover, and the upper side wall of the mounting cover is fixedly connected with a hydraulic cylinder. According to the utility model, when a plurality of digital meters are calibrated, the plurality of digital meters can be automatically and sequentially calibrated, so that the time for replacing the digital meters is shortened, the working efficiency of the automatic calibration system is improved, and when the digital meters are replaced, the plurality of digital