A communication method based on dual channels and RSSP-I, comprising: initializing configuration data, and loading independent configuration information on dual CPUs; sending a message according to the RSSP-I communication protocol; and receiving the message according to the RSSP-I communication protocol wherein the dual CPUs comprise a CPU_A and a CPU_B, only channel 1 related information is configured on the CPU_A, and only channel 2 related information is configured on the CPU_B, wherein in the initialization process, the CPU_A and the CPU_B are respectively designated as master and slave channel roles according to the configuration, wherein the step of sending the message specifically comprises: acquiring the application data of a current user UserData from an application interface; calculating different security codes for different types of data to be sent; if the channel role is slave, weV sending a corresponding calculation result to the master role at the other end; packetizing by the master channel according to the requirements of the RSSP-I protocol and a corresponding message type after the master channel receives a security code value of the slave, wherein after packetization two-channel information in a data packet adopts the security code values of respectively; sending out a complete message packet; and finishing single packet data processing, and if there are multiple data, starting from step again until all the data are processed. initializing configuration data, and loading independent configuration information on dual CPUs; sending a message according to the RSSP-I communication protocol; and receiving the message according to the RSSP-I communication protocol wherein the dual CPUs comprise a CPU_A and a CPU_B, only channel 1 related information is configured on the CPU_A, and only channel 2 related information is configured on the CPU_B, wherein in the initialization process, the CPU_A and the CPU_B are respectively designated as master and slave channel roles according to the configuration, wherein the step of sending the message specifically comprises: acquiring the application data of a current user UserData from an application interface; calculating different security codes for different types of data to be sent; if the channel role is slave, weV sending a corresponding calculation result to the master role at the other end; packetizing by the master channel according to the requirements of the RSSP-I protocol and a corresponding message type after the master channel receives a security code value of the slave, wherein after packetization two-channel information in a data packet adopts the security code values of respectively; sending out a complete message packet; and finishing single packet data processing, and if there are multiple data, starting from step again until all the data are processed. wherein the dual CPUs comprise a CPU_A and a CPU_B, only channel 1 related information is configured on the CPU_A, and only channel 2 related information is configured on the CPU_B, wherein in the initialization process, the CPU_A and the CPU_B are respectively designated as master and slave channel roles according to the configuration, wherein the step of sending the message specifically comprises: acquiring the application data of a current user UserData from an application interface; calculating different security codes for different types of data to be sent; if the channel role is slave, weV sending a corresponding calculation result to the master role at the other end; packetizing by the master channel according to the requirements of the RSSP-I protocol and a corresponding message type after the master channel receives a security code value of the slave, wherein after packetization two-channel information in a data packet adopts the security code values of respectively; sending out a complete message packet; and finishing single packet data processing, and if there are multiple data, starting from step again until all the data are processed. acquiring the application data of a current user UserData from an application interface; calculating different security codes for different types of data to be sent; if the channel role is slave, weV sending a corresponding calculation result to the master role at the other end; packetizing by the master channel according to the requirements of the RSSP-I protocol and a corresponding message type after the master channel receives a security code value of the slave, wherein after packetization two-channel information in a data packet adopts the security code values of respectively; sending out a complete message packet; and finishing single packet data processing, and if there are multiple data, starting from step again until all the data are processed.