Communication method of relay protection device with gateway function and relay protection device

The invention provides a communication method of a relay protection device with a gateway function and the relay protection device, and the communication method comprises the steps: receiving a control command sent by an upstream SCADA system, and the control command comprises identification information and control data of a control object; determining a downstream control device corresponding to the control object according to the identification information of the control object, wherein the downstream control device is used for controlling the control object according to the control data; sending a control instruction to downstream control equipment, wherein the control instruction is information which is generated according to the control command and can be identified by the downstream control equipment; receiving control feedback information sent by the downstream control equipment according to the control instruction, wherein the control feedback information is used for indicating whether the downstream