The utility model discloses a board conveying and hot press molding system. The system comprises a rack, an objective table, a heating unit, a punching unit, a conveying unit and a control unit. The objective table, the heating unit, the punching unit, the conveying unit and the control unit are arranged on the rack, the conveying unit comprises a pair of rails, a pair of mechanical arms and two driving mechanisms. The rails are arranged on the two sides of the rack and sequentially pass through the objective table, the heating unit and the punching unit, the mechanical arms are arranged on the rails and used for clamping materials, and the driving mechanisms drive the mechanical arms to move respectively. Each driving mechanism comprises a synchronous belt and a servo motor, wherein the synchronous belt is fixedly connected with the corresponding mechanical arm and used for driving the corresponding mechanical arm to move in the corresponding rail, and the servo motor drives the synchronous belt. According to the board conveying and hot press molding system, the servo motors are utilized for driving the synchronous belts, the synchronous belts drive the mechanical arms to do synchronous tracing motion, precise locating control is achieved, the system is simple and convenient, and the control cost is reduced.