Mounting structure of automobile luggage rack

The utility model discloses a mounting structure of an automobile luggage rack, which relates to the technical field of automobile luggage racks and comprises an automobile roof, automobile roof fixing frames are fixed at two ends of the top of the automobile roof, and clamping seats are connected to two sides of the surfaces of the two groups of automobile roof fixing frames in a clamping manner. Through cooperation of the suction cups, the supporting bases, the matched sleeves, the transmission lead screws, the roof fixing frames, the baffles, the clamping bases and the springs, the suction cups and the roof are fixed, the supporting bases are fixed, the matched sleeves are rotated, the matched sleeves drive the two transmission lead screws to move towards the roof fixing frames on the two sides at the same time, and under the inclined and smooth design of the baffles, the clamping bases are clamped through the clamping bases. The two baffles gradually move towards the interior of the matching plate along w