The invention discloses an automobile luggage rack, which comprises a bottom frame, a beam is installed on the inner side of the bottom frame, a second jacket is sleeved on the outside of the bottom frame, and a top splint is arranged on the top of the inner bottom plate. A sleeve cap is provided on the outer top of the bottom cylinder, the top cylinder passes through the sleeve cap, and a rubber belt is installed on the inside of the first jacket. The car luggage rack, through the cooperation of the top frame, the bottom frame and the top splint, when the top splint is buckled inward by the movable parts, squeezes and fixes the box body, and when a larger box is placed, the top splint moves upward through the movable parts Buckle, increase the inner gap, enhance the clamping area, and strengthen the clamping and fixing effect on the bottom of the box. The top frame is placed on the top of the box and rotates in the top seat through the first bearing when the top cylinder rotates, so that When the top cylinder rotates and lowers, it pulls the top frame to move down to press and fix the box body, which strengthens the fixing effect on the box body and has a better use effect.