Engineering material automatic transaction control method, system and device, medium and terminal

The invention belongs to the technical field of block chain application, and discloses an engineering material automatic transaction control method, system and device, a medium and a terminal. Comprising the steps of building block chain engineering material supplier nodes, reporting and updating block chain material prices, planning engineering cost material consumption plans and adopting prices, automatically trading block chain materials, and evaluating and feeding back material trading information. According to the material supplier quotation and material automatic transaction based on the block chain, transparency and accuracy of material price information in a project cost process can be realized, bidding automatic transaction is realized for the material suppliers, the problems of non-transparent and inaccurate material price information and inaccurate cost in a traditional project cost process are solved, and the material price transaction efficiency is improved. Meanwhile, the problems that the mater