The invention provides a smart meter carrier module detection device, which comprises a portable test box, wherein software of the device can be in communication connection with any PC machine througha USB conversion serial port RS-232; a test unit and a measurement and control unit are arranged in a box body; a plurality of single-phase carrier module sockets and a three-phase carrier module socket are respectively arranged in the test unit; and two RS-232 sockets, a power socket, a power switch, a communication control module and a switch power module are arranged in the measurement and control unit. The sockets and the communication control module of the test unit are connected to the output end of the switch power module. The communication control module is connected to the PC machinethrough the USB conversion serial port RS-232. The device has the most important characteristic that carrier module tests of different manufacturers, different product versions and different batchescan be carried out in batches, so that the detection efficiency is greatly improved.