Abstract: The continuous development of the energy internet has put forward higher requirements for relay protection.To satisfy the requirements of relay protection for the energy internet in the aspects of distributed architecture,high-reliability capacity,self-healing capacity and comprehensive observability,this paper deeply integrates the advanced sensing and communication technologies with relay protection devices.Based on physical status sensing information,multi-source fault sensing information,and wireless information communication technology of 5 G wireless communication technologies public network,LAN and device to device etc.,this paper proposes a device-level relay protection technical solution.According to the visibility and measurability characteristics of the entire electric network,this paper also proposes a platform-level operation and maintenance solution based on the LoRa wireless communication technology and smart wave recorder.These technical solutions can provide some references for the further development of the relay protection.