The invention relates to a docking connection node structure of prefabricated assembly concrete superposed beams and belongs to the technical field of construction engineering. The superposed beam prefabricated part has longitudinal steel bars each of which extends out of an end and has a 180 DEG hook at an end part. The upper side of the superposed prefabricated part is provided with a superposition layer which is provided with beam top longitudinal bars of which an end is configured to have a 180 DEG hook. Connecting steel bars each of which has two ends provided with a 180 DEG hook which separately clings to one beam bottom longitudinal bar and one beam top longitudinal bar so as to form a force transmission ring. Each force transmission ring is inserted with 4 joint bars. The connecting region between the superposed layer and the adjacent superposed beam prefabricated part is cast with concrete so as to be solidified and moulded into a superposed beam. According to the invention, the hooks and steel bars are connected to form the force transmission rings so as to complete the docking connection of the prefabricated assembly concrete superposed beams, and construction materials and construction methods are regular materials and methods. The docking connection structure is easy to operate, simplifies construction, has strong universality, and can be directly applied to the engineering practice of prefabricated assembly concrete structures.