The invention relates to a device for replacing a single-phase intelligent electric energy meter without power outage, which comprises a wiring bottom board specially for the single-phase intelligent electric energy meter and a socket without power outage connected mutually. The wiring bottom board specially for the single-phase intelligent electric energy meter comprises a main body substrate, a transition fit connector, a connector fixing terminal, an insulated protection cover plate, and an anti-electricity stealing cover plate, wherein the main body substrate is located inside a single-phase intelligent electric energy meter metering box and is connected with the single-phase intelligent electric energy meter; the transition fit connector is connected with the socket without power outage; the connector fixing terminal is fixed on the main body substrate and connected with the transition fit connector; the insulated protection cover plate is fixed on the main body substrate; and the anti-electricity stealing cover plate is fixed on the insulated protection cover plate. The socket without power outage comprises a socket main body, a short circuit connector fixed on the socket main body and a short circuit line located in the socket main body and connected with the short circuit connector. Compared with the prior art, the device of the invention has the advantages that meter change without power outage can be realized, the operation is convenient, the modular degree is high, and the safety performance is high.