Abstract: Quantum voting protocol is an electronic voting protocol designed by using some properties of quantum. The current quantum voting protocol ignores the two-way privacy protection, that is, the privacy protection of the unsuccessful candidate's voting information on the premise of ensuring the privacy of voters. A six-party quantum voting protocol was designed, which uses the five-particle entangled state to realize the quantum proxy blind signature, and uses the semi-quantum secret comparison protocol to realize the secret comparison of votes. The former can separate voter identity information from voting information to protect the privacy of voters, while the latter can secretly compare the votes of candidates to protect the privacy of candidates. The designed quantum voting protocol took the traditional quantum voting protocol as the framework and added new functions. The voting process was safe and reliable and can be supervised. The traditional security and quantum resistance of the protocol were guaranteed, and there was no excessive use of quantum resources, which can realize a complete large-base voting process.