A random access sequence transmitting method, comprising: node 1 generating a new random access sequence according to a random access sequence and a configuration information, and the node 1 sending the new random access sequence on an enhanced random access channel; wherein, the configuration information comprises an arrangement mode information of the random access sequence, characterized in that, the arrangement mode information of the random access sequence comprises: generating L derived random access sequences based on the random access sequence according to a predetermined principle, wherein L is an integer greater than 0, and L is configured in the node 1 and the node 2 by default, or sent by the node 2 to the node 2 via a signaling; arranging the derived random access sequences in accordance with a predetermined order to constitute into a random access long sequence, repeatedly arranging the random access long sequence for T times to constitute into the new random access sequence, wherein, T is an integer greater than 0, and T is configured in the node 1 and the node 2 by default, or sent by the node 2 to the node 1 via a signaling; wherein random access sequences allocated to the node 1 for generating a new random access sequence are divided into N groups, and each group comprises one or more of random access sequences used to generate the new random access sequence, each group corresponds to one value of the L and the node 1 randomly selects one sequence from the corresponding group as the random access sequence for generating the new random access sequence in accordance with the required number of repetitions; wherein the required number of the repetitions configured in the node 1 and the node 2 by default, or sent by the node 2 to the node 1 via a signaling; wherein the node 1 is a machine type communication terminal or a non-machine type communication terminal; the node 2 is one of a MacroCell, a MicroCell, a PicoCell, a Femtocell, and a Relay. node 1 generating a new random access sequence according to a random access sequence and a configuration information, and the node 1 sending the new random access sequence on an enhanced random access channel; wherein, the configuration information comprises an arrangement mode information of the random access sequence, characterized in that, the arrangement mode information of the random access sequence comprises: generating L derived random access sequences based on the random access sequence according to a predetermined principle, wherein L is an integer greater than 0, and L is configured in the node 1 and the node 2 by default, or sent by the node 2 to the node 2 via a signaling; arranging the derived random access sequences in accordance with a predetermined order to constitute into a random access long sequence, repeatedly arranging the random access long sequence for T times to constitute into the new random access sequence, wherein, T is an integer greater than 0, and T is configured in the node 1 and the node 2 by default, or sent by the node 2 to the node 1 via a signaling; wherein random access sequences allocated to the node 1 for generating a new random access sequence are divided into N groups, and each group comprises one or more of random access sequences used to generate the new random access sequence, each group corresponds to one value of the L and the node 1 randomly selects one sequence from the corresponding group as the random access sequence for generating the new random access sequence in accordance with the required number of repetitions; wherein the required number of the repetitions configured in the node 1 and the node 2 by default, or sent by the node 2 to the node 1 via a signaling; wherein the node 1 is a machine type communication terminal or a non-machine type communication terminal; the node 2 is one of a MacroCell, a MicroCell, a PicoCell, a Femtocell, and a Relay. generating L derived random access sequences based on the random access sequence according to a predetermined principle, wherein L is an integer greater than 0, and L is configured in the node 1 and the node 2 by default, or sent by the node 2 to the node 2 via a signaling; arranging the derived random access sequences in accordance with a predetermined order to constitute into a random access long sequence, repeatedly arranging the random access long sequence for T times to constitute into the new random access sequence, wherein, T is an integer greater than 0, and T is configured in the node 1 and the node 2 by default, or sent by the node 2 to the node 1 via a signaling; wherein random access sequences allocated to the node 1 for generating a new random access sequence are divided into N groups, and each group comprises one or more of random access sequences used to generate the new random access sequence, each group corresponds to one value of the L and the node 1 randomly selects one sequence from the corresponding group as the random access sequence for generating the new random access sequence in accordance with the required number of repetitions; wherein the required number of the repetitions configured in the node 1 and the node 2 by default, or sent by the node 2 to the node 1 via a signaling; wherein the node 1 is a machine type communication terminal or a non-machine type communication terminal; the node 2 is one of a MacroCell, a MicroCell, a PicoCell, a Femtocell, and a Relay.