The invention discloses a p<{EN0}>power monitoring instrument batch production test system, which comprises a processing terminal, a power source, a measurement and control module, connection modules,a hub, a scanner, detection switches and indicator lights. The power source is connected with power measurement and control instruments through the connection modules; the power measurement and control instruments are communicated with the processing terminal through the hub; the power source and an output module communicate with the processing terminal through a serial port; one end of each detection switch is connected with the common end of the measurement and control module, and the other end of the detection switch is connected to a DI interface of the measurement and control module; theindicator lights are connected to DO interfaces corresponding to the DI interfaces; and the scanner is connected to the processing terminal. The invention also discloses a power monitoring instrumentbatch production test method. The system and method can simultaneously test multiple power monitoring instruments; and if some station has no power monitoring instrument, normal test of other stations is not influenced.