We propose a new multiparty quantum secret sharing protocol via introducing auxiliary particles usinga non-maximally entangled (pure) two-particle state without a Bell measurement.The communication parties utilizedecoy particles to check eavesdropping.After ensuring the security of the quantum channel,the sender encodes thesecret message and transmits it to the receiver by using controlled-NOT operation and von Neumann measurement.Ifand only if all the agents agree to collaborate,they can read out the secret message.