The present invention relates to an outdoor uninterrupted power electric energy meter wrong wiring detection device and method. A modulation signal is injected in a power line at an electric energy meter end via a signal feed-in device, a wave trapping device modulates and traps a wave at an electric energy meter output end according to a certain time rule, so that the injected signal obtains a wave trapping characteristic. A sensing device receives a wireless signal, analyzes the wave trapping characteristic in the wireless signal, calculates and evaluates the quantized value of the receivedsignal. Finally, the quantized values of different users are compared, the user having the maximum numerical value is the user corresponding to an injected electric energy meter. According to the present invention, on the condition of not interfering the users furthest, the outdoor and uninterrupted power electric energy meter wiring inspection is realized, and the detection device and the detection method have the higher reliability.