A method for transmitting network management information, applied to a transmitting apparatus, comprising: selecting, according to a configuration mode of a transmitting apparatus, a delivery channel corresponding to the configuration mode; and carrying the network management information in a data stream, and transmitting the data stream to a receiving apparatus through the delivery channel; wherein the configuration mode of the transmitting apparatus comprises an Ethernet mode and a flexible Ethernet, FlexE, mode, wherein a delivery channel corresponding to the Ethernet mode is an Ethernet channel, and a delivery channel corresponding to the FlexE mode is a FlexE channel; characterized in that, the carrying the network management information in the data stream, and transmitting the data stream to the receiving apparatus through the delivery channel comprises: in condition that the delivery channel corresponding to the configuration mode is an Ethernet channel, inserting the network management information into an Ethernet data stream, and transmitting the Ethernet data stream to the receiving apparatus through the Ethernet channel; and in condition that the delivery channel corresponding to the configuration mode is a FlexE channel, encapsulating the network management information in a FlexE frame of a FlexE data stream, and transmitting the FlexE data stream to the receiving apparatus through the FlexE channel; wherein the FlexE frame is an overhead frame. selecting, according to a configuration mode of a transmitting apparatus, a delivery channel corresponding to the configuration mode; and carrying the network management information in a data stream, and transmitting the data stream to a receiving apparatus through the delivery channel; wherein the configuration mode of the transmitting apparatus comprises an Ethernet mode and a flexible Ethernet, FlexE, mode, wherein a delivery channel corresponding to the Ethernet mode is an Ethernet channel, and a delivery channel corresponding to the FlexE mode is a FlexE channel; characterized in that, the carrying the network management information in the data stream, and transmitting the data stream to the receiving apparatus through the delivery channel comprises: in condition that the delivery channel corresponding to the configuration mode is an Ethernet channel, inserting the network management information into an Ethernet data stream, and transmitting the Ethernet data stream to the receiving apparatus through the Ethernet channel; and in condition that the delivery channel corresponding to the configuration mode is a FlexE channel, encapsulating the network management information in a FlexE frame of a FlexE data stream, and transmitting the FlexE data stream to the receiving apparatus through the FlexE channel; wherein the FlexE frame is an overhead frame. in condition that the delivery channel corresponding to the configuration mode is an Ethernet channel, inserting the network management information into an Ethernet data stream, and transmitting the Ethernet data stream to the receiving apparatus through the Ethernet channel; and in condition that the delivery channel corresponding to the configuration mode is a FlexE channel, encapsulating the network management information in a FlexE frame of a FlexE data stream, and transmitting the FlexE data stream to the receiving apparatus through the FlexE channel; wherein the FlexE frame is an overhead frame.