Science and technology outsourcing management system based on blockchain alliance chain

The invention provides a science and technology outsourcing management system based on a blockchain alliance chain, the alliance chain platform is constructed between enterprises to realize science and technology outsourcing information sharing. Enterprises can effectively avoid outsourcing risk points through data shared in the industry, such as multi-head outsourcing, false outsourcing, low-quality outsourcing, outsourcing defects, off-site outsourcing management cost and the like; through the information shared by the alliance chain, the management risk of the information technology outsourcing is effectively reduced, and the investment cost of the institution in the information technology outsourcing management is also reduced; the blockchain alliance chain has the characteristics of decentralization, extremely high security, information tamper resistance, information traceability and the like, and can fully solve the problem of trust between organizations when the alliance chain is constructed. In additi