The invention discloses a portable electric operation and maintenance carrier meter reading adapter which comprises an RS232 communication interface line, a power module and a local carrier communication module interface, wherein one end of the RS232 communication interface line is connected with an upper computer, and the other end of the RS232 communication interface line is respectively connected with an RS232-to-TTL level module; the local carrier communication module interface is respectively connected with the RS232-to-TTL level module, an AC power line interface and a local carrier communication module; the local carrier communication module interface is connected with a status indication module; the AC power line interface is connected with the power module; and the power module is connected with the local carrier communication module interface and the RS232-to-TTL level module. By adopting a plug-and-play design mode, the adapter disclosed by the invention can easily adapt to carrier devices of different carrier schemes, the working load of operation and maintenance workers is reduced, the working efficiency is increased, and the investment of manpower and material resources is saved.