The invention discloses a fixing structure for an ultra-specification individual dodge gate, which comprises an inner box (1), an adjusting box (2), an outer box (3), a lower shaft lever (4), an upper shaft bottom case (5), an upper shaft lever (6), an upper tapered roller bearing (7) and a lower tapered roller bearing (8), wherein the upper shaft lever (6) is fixed at the upper part of the individual dodge gate, and is fixed in the upper shaft bottom case (5) through the upper tapered roller bearing (7); the lower shaft lever (4) is fixed at the lower part of the individual dodge gate, and is fixed in the inner box (1) through the lower tapered roller bearing (8); the inner box (1) is arranged in the outer box (3) through the adjusting box (2); the outer box is fixed on the ground; and an adjusting bolt that can finely adjust the axial vertical accuracy of the individual dodge gate in the radial direction is arranged on the adjusting box (2). The fixing structure can lead the dodge gate to be opened and closed freely, has the advantages of long service life, fewer failures, high construction efficiency and low maintenance cost, is convenient to install and adjust, and can save labor and material cost.