The embodiment of the invention discloses a collecting device and method of electrical equipment data, and relates to the technical field of electrical data collection. The device comprises a control circuit comprising an embedded processor which is connected with an Ethernet interface, a Bluetooth interface, a universal serial bus interface and a serial interface, wherein the Ethernet interface, the Bluetooth interface and the universal serial bus interface are used for being connected with a back-end data analyzing and processing device to transmit the electrical equipment data to the back-end data analyzing and processing device; the embedded processor is further connected with a power circuit, a storage and a voltage conversion circuit connected with a photocoupling circuit; the photocoupling circuit is connected with an RS485 interface and an RS 232 interface; the RS 232 interface is used for being connected with electrical equipment to obtain electrical equipment data from the electrical equipment. According to the collecting device and the method, on a site where the electrical equipment is located, the data analyzing and processing device can perform data analysis, and the problem that the analysis process of the electrical equipment data is troublesome and complex at present is solved.