本文认为,量子通信这种看似无懈可击的通信方式,实际上是以牺牲信号稳定性为代价的,一旦存在敌方的任何形式的入侵行为,不管是窃听、复制还是干扰,量子通信都将无法实现,而传统的密码体系,都是假设敌方可以获取信息,但是从计算复杂性上让敌方无法破解。8月16日凌晨,中国首颗量子科学实验卫星在甘肃酒泉卫星中心发射升空。它同时是世界上首颗量子卫星,中国成为全球第一个实现卫星和地面 This paper argues that this seemingly immaculate communication of quantum communication is actually at the expense of signal stability, and once there is any form of intrusion by the enemy, whether it is eavesdropping, copying or interference, quantum communication will not be possible However, the traditional cryptosystem assumes that the enemy can obtain information, but the enemy can not be solved in terms of computational complexity. On the early morning of August 16, China’s first quantum scientific experiment satellite was launched at the Jiuquan Satellite Center in Gansu. At the same time it is the world’s first quantum satellite, China became the world’s first satellite and ground