High-precision digital metering pump

The utility model discloses a high-precision digital metering pump which comprises a metering pump body, a variable frequency motor, a driving device and an adjusting device are arranged in the metering pump body, the driving device is arranged on the front side of the interior of the metering pump body, and the driving device comprises an eccentric shaft combination, an eccentric driver, an eccentric driver connecting body, a diaphragm rear body, a diaphragm and a front cover combination. The eccentric shaft combination is connected with the front end of the variable frequency motor, the eccentric driver is installed outside the eccentric shaft combination, the right end of the eccentric driver penetrates through the eccentric driver connector and the diaphragm rear body to be in contact connection with the diaphragm, and the left end of the eccentric driver is connected with the adjusting device in a matched mode. The driving device with the eccentric mechanism is arranged, a digital control display system