Abstract: A new e-payment system based on quantum blind and group signature is proposed.Existed e-payment systems which based on the classical cryptography cannot guarantee the security because of the unsecure of classical blind and group signature.Compared with the classical e-payment system，this quantum e-payment scheme can realize not only the function of e-payment but also the unconditionally security.To achieve that，quantum key distribution，one-time pad and quantum blind and group signatures are adopted in this scheme.Moreover，the mechanism of audit is introduced to detect the forgery.

Key words: quantum signature, e-payment system, unconditional security

摘要： 提出了一个基于量子群签名和盲签名电子支付系统的实现方案。基于经典的签名的现有的电子支付系统不能保证无条件安全性。与经典的电子支付系统不同，提出的方案既能满足电子支付系统的需求，又能实现无条件安全。应用量子密钥分发技术，量子一次一密算法和审计机制实现了基于量子签名的电子支付系统。

关键词: 量子签名, 电子支付系统, 无条件安全性