Abstract: Some embodiments of the present application disclose a data transmission scheduling method and system, and the method relates to the field of data transmission technologies and comprises: the scheduling server periodically acquiring data production status of all online data producers during a previous period and data consumption status of all online data consumers during the previous period; the scheduling server generating a transmission schedule table according to infrastructure information of all online data producers and all online data consumers as well as data production status and data consumption status; the scheduling server providing the transmission schedule table to all online data producers, such that all online data producers perform data transmission based on the transmission schedule table.