The invention relates to a rail plate beam structure system and a production method, and belongs to the technical field of rail and bridge engineering. The rail plate beam structure system involves aplate body, and longitudinal post-tensioning prestress hole channels are reserved in the plate body; the top surface of the plate body is provided with rail-bearing grooves which are formed in an inwards-concave mode and are used for allowing steel rails to be embedded therein, the rail-bearing grooves penetrate through the two end faces of the plate body in the longitudinal direction, and the tworail-bearing grooves are arranged at intervals and in parallel; and at least two sets of post-tensioning prestress hole channels are formed, and one set of longitudinal post-tensioning prestress holechannels are arranged below each of the two rail-bearing grooves. According to the rail plate beam structure system, the rail function and the bridge function are combined into a whole, so that the constitution is simple, the construction cost can also be reduced, and the rail plate beam structure system is a brand-new upper structure of a bridge; the longitudinal post-tensioning prestress hole channels are reserved in the plate body, prestressing tendons penetrate through the hole channels, so that the prestress is applied in the plate body in advance so as to resist the impact load of a train; and the rail plate beam structure system can provide continuous support for the steel rails, most of the vibration sources are consumed, so that the running of the train is smooth, and the servicelife of the steel rails and the train is prolonged.