Abstract: A disk wheel, comprising a wheel rim (1) and a wheel spoke (2), the inner wall of the wheel rim outer edge (11) is matched with the first wheel spoke convex wall (9), the inner wall of the tire supporting wall (7) is attached to the strengthening wall (8), the groove (5b) is formed in the inner wall of the wheel rim round peak (5), the strengthening wall (8) is provided with the second wheel spoke convex wall (4) in interference fit to the groove (5b), and the groove (5b) is in interference fit to the second wheel spoke convex wall (4), so that the stability of axial matching between the wheel rim (1) and the wheel spoke (2) is guaranteed, and an axial stress, a circumferential stress and a radial stress of the disk wheel in the using process can be effectively addressed.