The utility model provides a component type universal data relay device for monitoring operating states of main electrical equipment, belongs to the technical field of data relay devices and mainly solves the problem of poor universality in the prior art. The component type universal data relay device is characterized in that a wired data input module (10) comprising an RS232interface (1), an RS485 interface (2), a twisted-pair interface (3) and an optical fiber interface (4), a wireless data input module (11) comprising a radio frequency wireless data input interface (5), a wired data communication module (13) comprising an RS232interface, an RS485interface and an optical fiber interface, a wireless data communication module (12) comprising a GPRS interface (7), and a power source module (6) comprising a 220V alternating-current input interface, a 12V direct-current input interface, a 24V direct-current input interface and a storage battery interface are combined together, and the component type universal data relay device is provided with a data preprocessing module (8) and a device management module (9).