Method and device for signal transporting

Transport Method signals applied in an optical transport network, comprising: presetting frame structures for a payload unit optical channel OPUx and a unit of an optical channel data ODUx a 5Gbps path which transports level signals CBR5Gbps speed constant bit rate in an optical channel layer; according to the frame structures of the payload unit optical channel OPUx and the unit optical channel data ODUx, set map and multiplex signals speed level CBR5Gbps constant bit rate to the optical channel layer network optical transport for transport through the optical transport network; wherein a frame format of 4 rows and 4080 columns in the setting of the frame structures of the payload unit optical channel OPUx is used, the unit optical channel data ODUx and the transport unit optical channel OTUx signal level constant bit rate CBR5Gbps rate transported through the 5Gbps path of the optical channel layer.