The invention relates to a two-dimensional angle-adjustable mirror bracket. The two-dimensional angle-adjustable mirror bracket comprises a ball seat plate, a rotating body and a fastening piece, wherein the rotating body is matched with the spherical surface of the ball seat plate; and the fastening piece is used for fixing the rotating body relative to the ball seat plate. The rotating body is a multi-spherical rotating body (9), wherein the spherical surface (16) is positioned in the centre of one end of the multi-spherical rotating body (9); the spherical diameter of the spherical surface is the same as that of the ball seat plate (4), and the spherical surface is provided with a revolution axis (17); four fine-turning spherical surfaces (18) are uniformly formed on the periphery of the second end, opposite to the first end, of the rotating body (9); and the periphery of the first end is separated from the ball seat plate (4). A through hole (19) is formed in the centre of each fine-turning spherical surface; and the central line of each through hole is parallel to the revolution axis (17). Spherical gaskets (5) each of which is matched with each of the fine-turning spherical surface in pairs are provided; and the spherical surfaces of the spherical gaskets (5) are matched with corresponding spherical surfaces (18). The diameter of the matching part between the fastening piece (8) and each through hole of each spherical surface (18) and the diameter of the matching part between the fastening piece (8) and the corresponding spherical gasket (5) are less than the diameters of the through holes of the spherical surface (18) and the corresponding spherical gasket (5).