The invention discloses an automobile fixing component with an efficient fixing function. The automobile fixing component is characterized in that fixing devices comprise fixing frames, first threadedrods are movably inserted in the fixing frames, a cushioning device is fixedly connected with the end, which is positioned in the corresponding fixing frame, of each first threaded rod, movable rodsare movably inserted in the cushioning devices, and the end, which is positioned outside the corresponding cushioning device, of each movable rod extends into a first groove formed in a nut. The automobile fixing component has the advantages that small screws can move, fixing plates can be pushed to downwardly move, accordingly, squeezing force can be applied to the upper surfaces of the first threaded rods, and effects of fixing the first threaded rods further can be realized; steel ropes can be wound on winding shafts, accordingly, restraint rods can be driven by sliders to move, restraint plates can be butted to the first threaded rods, the first threaded rods can be prevented from backwardly moving, effects of restraining the first threaded rods can be realized, and efficient fixing effects can be realized by the automobile fixing component by the aid of multistep measures.