Modularized building fast-assembly aluminum frame

The invention relates to the technical field of building modules, in particular to a modular building fast-assembly aluminum frame which comprises a frame profile, the frame profile is of a square structure, function expanding notches are formed in the side edges of the two sides of the frame profile, bayonets are formed in the side ends of the frame profile, and outer function notches are formed in the outer side wall of the frame profile. Each side edge of the frame profile is provided with a plurality of inner functional notches, hand-screwing connecting nuts, hand-screwing connecting pieces and hand-screwing shaping needles are inserted into the inner functional notches, and the outer functional notches are provided with linear profile locking pieces or L-shaped profile locking pieces or T-shaped profile locking pieces. Professional tools and installation personnel are not needed, the splicing combination modes are diversified, various complex structure models are achieved and presented, and tension and t