The invention discloses a double-rail and double-trolley synchronous multi-station material automatic transferring system. Two trolleys are connected with a double-trolley work station separately; the double-trolley work station is connected with a center control system through an Ethernet communication module and sends own position information and running state information to the center control system; each station is provided with a station work station and a plurality of procedure equipment work stations, each procedure equipment work station is connected with the station work station; and the station work station is connected with the enter control system through the Ethernet communication module; and the center control system is used for sending a station transferring command to the double-trolley work station according to station position distribution information, double-trolley position information and received station operation finishing state information which are preset in the center control system, and the double-trolley work station synchronously transfers a material from a station with finished operation to a preset next station according to the station transferring command. The double-rail and double-trolley synchronous multi-station material automatic transferring system can intelligently realize large-size heavy object automatic transferring and procedure connection and is high in transferring efficiency and accurate in positioning.