The invention discloses a welding-free steel frame component structure which comprises porous angle steel (1), connectors (4) and embedded parts (6). The section of the porous angle steel (1) is L-shaped, a plurality of holes are formed in two side surfaces of the porous angle steel (1), two pieces of porous angle steel (1) are crosswise arranged and fixedly connected through a bolt (5) to form a group of basic framework unit structure part, one end of each piece of porous angle steel (1) is fixedly connected with the corresponding embedded part (6) through a bolt, the embedded parts (6) are fixed to a building base course through main bolts (7), and the porous angle steel (1) is fixedly connected with the connectors (4) through bolts. Welding can be omitted, connection among facing slabs of the welding-free steel frame component structure and the porous angle steel base course can be optionally adjusted by adjusting plan view sizes through a plurality of holes, the welding-free steel frame component structure is disassembled, modified and assembled at any time in construction and flexible and convenient to correct, the mounting speed is increased, adjustability and accuracy are improved, construction period can be shortened, the environment is protected, and energy is saved.