The utility model provides a wall and prefabricated superimposed bottom plate connected node structure in middle of prefabricated with filling, is wall (1) and prefabricated superimposed bottom plate(2) in the middle of the perpendicular prefabricated with filling of connecting, and the vertical reinforcement of wall stretches out a prefabricated layer and extends and forms U type structure (14)in the middle of the prefabricated with filling, and in this U type structure gets into prefabrication superimposed bottom plate's the 2nd cast -in -place layer, and prefabricated superimposed bottomplate's the 2nd prefabricated layer is placed in to the bottom of this U type structure, set up in prefabricated superimposed bottom plate's the 2nd prefabricated layer split heads reinforcing bar (4), the top of this split heads reinforcing bar is buckled into the U style of calligraphy and is stretched into the middle wall U type structure of prefabricated with filling that lies in the 2nd cast-in -place layer, and the back is buckled to extending in the both ends of this split heads reinforcing bar in the 2nd prefabricated layer, prefabricated superimposed bottom plate's the 2nd cast -in -place layer and a cast -in -place layer of the middle wall of prefabricated with filling cast in situ concrete together form a body structure. The utility model discloses a wall is connected with prefabricated the firm of superimposed bottom plate in the middle of the prefabricated with filling, and makes its connected node have enough atress performances.