The current blockchain technology only realizes the credible transmission of “interests” in the network, and the corresponding “responsibility” transmission has not been implemented. The key scientific questions are what is the carrier of “responsibility” and how the receipt of the “responsibility” is confirmed. Only the “interest” is passed on the blockchain network. Therefore, this status quo causes the trust relationship established on the blockchain to be one-way, and it is impossible to establish the trust of the originator to the receiver. This paper presents the realization of deterministic fair contract signing protocol based on blockchain technology without trusted third party, which changes the one-way trust relationship of the transaction blockchain technology and establishes a multi-way trust relationship between the nodes participating in the blockchain through an additional protocol. The transaction content in blockchain is replaced by the contract to be signed, then, conduct “transfer” transactions between multiple parties, to achieve multi-party sign the contract in the random order. It is the only confirmation that the contract is effective when multiple parties complete the sequential signature among the linked tickets. Due to the openness, tampering, and non-repudiation of the blockchain transaction data, the cheat of any party in the contract is avoided, the fairness of the contract exchange process is guaranteed, and the balance between multiple parties is completed after the contract exchange. At the same time, this protocol provides real-time, dynamic management of multi-party contracts, including the addition, renewal and deletion of contract content. Finally, the paper discusses the fairness, privacy and the choice of blockchain consensus.