Modularized structure adopting mixed nodes

The utility model relates to a modular structure adopting mixed nodes, belongs to the technical field of modular steel structure buildings, and solves the problems of low bearing capacity and poorer anti-seismic property of components of the modular structure in the prior art. The building block comprises at least two module units, each module unit comprises an upper node beam, a lower node beam, an enclosure wallboard and beam columns, the enclosure wallboard is arranged in a rectangular frame defined by the upper node beam, the lower node beam and the two beam columns, the upper node beam comprises a first core column, and the lower node beam comprises a second core column. A first through hole is formed in the top of the lower joint beam, and the first core column of the module unit on the upper layer is correspondingly connected with the first through hole of the module unit on the lower layer in an inserted mode. The upper and lower adjacent module units are fixed by inserting the upper and lower beams,