The invention discloses a fully assembled connection structure for a low-rise building, which includes a column and a main beam, the column is provided with a first joint, and the end of the main beam is provided with a second joint; the first joint is L type, the second joint is inverted L-shaped, and the first joint and the second joint are fixedly connected by vertically arranged bolts; the fully assembled connection structure of the low-rise building of the present invention has main beams and columns, main beams and secondary beams, The main beam and secondary beam and plate, column and foundation, internal wall and beam, external wall and beam and plate are all connected by detachable assembly structure, so that the main beam, column, secondary beam, plate, internal wall and external wall Such components can be mass-produced in the factory and then assembled at the building site, which can greatly increase the building speed, shorten the construction period, and reduce the construction cost; and the stiffness of the beam and column joints can be By adjusting the number of bolts, the adjustment of the stiffness of the nodes is simple and convenient, which can greatly improve the design speed of the house.