The invention discloses an SCD file document check device for an intelligent substation. The debugging and maintenance problems of the existing intelligent substation can be solved. The SCD file document check device is characterized by comprising an optical network port interface, an optical serial port interface, a message parsing module, a signal processing module, a liquid crystal, a USB interface and a keyboard, wherein the optical network port interface receives SV and GOOSE message signals; the optical serial port interface receives an FT3 message signal; the SV, GOOSE and FT3 message signals are subjected to message parsing by the message parsing module and are transmitted to the signal processing module; an SCD file is imported into the signal processing module by virtue of the USB interface; the liquid crystal provides a man-machine interaction interface; and the keyboard controls the operation interface and menu and inputs the digital alphabetic information. The device disclosed by the invention provides a powerful tool for SCD file check for the intelligent substation site, and the debugging efficiency of the intelligent substation is improved.