Combined with the actual demand of artificial vote in real life, a new secure voting protocol based on quantum secret sharing is proposed. In the protocol, four particles of each group of four-particle GHZ-state are delivered to the voter Alice, verifier Bob, signatory and internal auditor Charlie and external auditor Trent respectively. Alice measures the particles of her own to vote her message out. Charlie, Bob and Trent complete the signature, verification and audit work by measuring their own particles. Compared with the previous protocols, the roles in the proposed protocol are comprehensive and they can be substantially involved in voting related activities. It avoids the use of complex quantum fingerprint function, so it is easy to implement technically. Because of the dual supervision, the authority of the election result will be highly recognized by the internal and external of the ballot management center.