The invention provides a tire of an open structure. The tire comprises a tread, a hub, a first rim ring and a second rim ring, wherein the first rim ring and the second rim ring are respectively clamped between the inner side of the tread and the outer side of the hub; the first rim ring and the second rim ring respectively comprise rims which are uniformly distributed around the axis of the hub and every two of which are adjacent or cross with each other; each rim is connected with the inner side of the tread and the outer side of the hub; the first rim ring and the second rim ring are connected to a central radial plane of the tire and are arranged in a symmetrical manner or an asymmetrical manner; and a plurality of elastic inserts are respectively arranged on the inner side of the tread and/or the outer side of the hub. According to the tire of the open structure, provided by the invention, the driving comfort and controllability of the original tire of the open structure can be greatly improved.