One-way quantum secure communication protocol based on single photon sequence and the XOR operation have been proposed, one-way communication can confuse the eavesdroppers and there is not visible to eavesdropping and delayed photon attack Trojan horse attack. The new agreement the use of single photon sequence and no regularity not only to achieve unconditional security, and semantics confuse eavesdroppers and has a high transmission efficiency, easy implementation, especially suitable for use

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... in noisy channels. Introduction Quantum communication is one of the main focuses in the quantum information research. It has a good application prospect. In 1984, Bennett put forward Quantum Key Distribution Protocol (short for BB84). In BB84 Protocol, quantum key distribution is carried out through a quantum channel, that is to say, random key sequence in binary system is transmitted by a quantum channel and the secret message encrypted by the random key is transmitted by a classics channel. In 1991, Ekert first brought out QKD Protocol based on entangled particles. In 1992, Bennett proposed a brief QKD Scheme based on a group of non orthogonal states, short for B92. These and references[4-10] have discussed QKD. Among them, quantum communication also concludes: Quantum Secret Sharing [12] [13] [14] [15] [16] ,Quantum Secure Communication [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] ,Quantum Encryption Algorithm, Quantum Authentication and Signature, Quantum Network Communication Protocol and so on. In 2002, Bostrom and Felbinger explored the ideas of quantum entanglement and quantum dense coding to propose "Ping-pong" Protocol [21] . In 2003, Deng and Long utilized block transmission thought and based on dense coding theory and entanglement pair to put forward Two-step QSDC Scheme [22] . In 2004, Yan brought out the relative scheme. In 2005, Wang proposed high dimension QSDC Scheme [23] with quantum dense coding; Zhu put forward QSDC Protocol [24] based on particle order rearrangement; Wang brought out multi-party controlled protocol [25] based on single-photon order rearrangement; then appeared QSDC Protocol [26] with X entangled state and protocol [27] with identity authentication to improve QSDC.