在Wyner窃听信道和复合信道的基础上,考虑了合法传输信道集为经典信道,窃听信道集为量子信道这种信道模型的信息传输能力。目标是要设计编码译码方案,使得接收方能够完美译出发送的消息(译码错误概率趋于0),同时窃听者对发送消息的疑惑度尽可能的高。在此基础上推导了在发送者知道信道状态信息的情况下有量子窃听时的经典复合信道的安全容量;同时得出了在发送者不知道信道状态信息的情况下这种信道的安全容量的下界。 Based on the Wyner eavesdropping channel and composite channel, the information transmission capacity of the channel model with legal channel set as classical channel and eavesdropping channel set as quantum channel is considered. The goal is to design a coding and decoding scheme so that the receiver can perfectly interpret the sent message (the decoding error probability tends to 0), and the eavesdropper tries to send the message as high as possible. On this basis, the security capacity of classical composite channel with quantum eavesdropping is deduced when the sender knows the channel state information. At the same time, the secure capacity of such channel in the case that the sender does not know the channel state information Lower bound.