The invention discloses an electricity information acquisition terminal modular electromagnetic compatibility integrated test apparatus. The apparatus comprises a testboard body unit, a simulation terminal unit and a simulation communication module unit. The testboard body unit provides necessary power supply and communication signals; the simulation terminal unit is used for detecting coupling degree between a communication module and a standard; and the simulation communication module unit is used for detecting the coupling degree between an acquisition terminal and the standard. According to the invention, through detecting the standard technical specification coupling degree of software and hardware of the acquisition terminal and the communication module, the modularization degree of an electricity information acquisition terminal and whether the electromagnetic compatibility between modules is quite high in consistency are determined; and through detecting the standard technical specification coupling degree of software and hardware of the acquisition terminal and the communication module, whether convertibility exists among the modules is determined. A test means is provided for detection of a modular terminal device with replaceable units. The daily maintenance efficiency of the terminal device is improved, and great waste of materials is avoided.