The utility model discloses a dual-path IEC61850 message receiving and transmitting device based on a CRIO (Core-Router Integrated Overlay) platform. The device comprises a Flash memory module, a power conversion module, an FPGA (Field Programmable Gate Array) module, an optical network port I, an optical network port II, a PHY (Physical Layer) chip and an crystal oscillator, wherein the optical network port I and the optical network port II are respectively connected with the PHY chip; the PHY chip is connected with the FPGA module through an FPGA bus; the FPGA module is connected with the Flash memory module through the FPGA bus; a power input terminal of the FPGA module is connected with the power conversion module; an output terminal of the crystal oscillator is connected with a clock input port of the FPGA module; and the FPGA module is externally connected with the CRIO platform through an SPI (Serial Peripheral Interface) bus and used for receiving a synchronous clock signal transmitted by the CRIO platform through the SPI bus. As the device is used, the functions of acquisition, analysis, transmission and the like of IEC61850 messages can be finished conveniently; and the dual paths of the optical network ports can be independently used for receiving and transmitting the message.