The invention relates to the technical field of electric power detection, in particular to a device and method for inspecting an electric power field. The device comprises a data input unit used for inputting relevant data in an electric power database into a local database according to the requirements, an identifier inquiry unit used for obtaining communication parameters and standard data of a terminal to be inspected according to obtained identifier information of the terminal to be inspected and data in the local database, a protocol conversion unit used for converting real-time data uploaded by the terminal to be inspected into recognizable real-time data through a communication interface according to the communication parameters and a data analysis unit used for comparing the recognizable real-time data and the standard data and finally outputting a result indicating whether the terminal to be inspected is qualified or not. According to the device and method for inspecting the electric power field, compatibility of different terminals to be inspected is facilitated, the comparing result of the standard data and the data detected in real time is displayed through a spreadsheet of a screen, and therefore resource waste in the prior art can be avoided.