The invention discloses a technology transaction platform management system based on big data. The system comprises a merchant management module, a buyer management module, a transaction server and asupervision and examination module. The merchant management module sends the technical commodity information to a transaction server, and a commodity browsing management module in the transaction server classifies the technical commodities and respectively publishes the technical commodities in a first-level commodity management module, a second-level commodity management module, a third-level commodity management module and a lower-level commodity management module; According to the technical transaction platform management system provided by the invention, the transacted technical commodities can be graded according to the technical content; According to the technical scheme, the technical commodities of different grades are subjected to graded protection, a single-door payment module and a single-door technical transmission module are opened up, encryption is carried out through the encryption module, payment and technical transmission can be carried out in a single-door channel, supervision and examination are carried out through the supervision and examination module, and supervision and safety are high.