The utility model discloses a wellhead high-pressure water injection pump remote monitoring system. The device comprises a deep-well pump placed in a water source, the deep-well pump is connected withthe filter through a water pipe; the filter is connected with the water storage tank through a water pipe; the water storage tank is connected with a water feeding pump; the water feeding pump is connected with the water injection pump through a water pipe; the water injection pump injects water into an oil field through a water pipe; the first electromagnetic flowmeter, the second electromagnetic flowmeter, the first pressure transmitter, the second pressure transmitter and the temperature sensor are all electrically connected with the signal input end of the PLC control cabinet. The deep well pump, the water feeding pump, the water injection pump, the first electric valve, the second electric valve and the electromagnetic heater are all electrically connected with the signal output endof the PLC control cabinet. The PLC control cabinet is further connected with an RTU, the RTU is connected with a serial port expansion module, the serial port expansion module is connected with a communication module and an upper computer, and the communication module is connected with a remote control terminal.