An inner barrel shaft seal mounting structure of a washing machine comprises an inner barrel flange (11) and an inner barrel shaft (13) which are arranged at an inner barrel bottom, wherein the upper end part of the inner barrel shaft (13) is a flange structure, the inner barrel flange (11) is connected with an inner barrel shaft flange (10), and a composite sealing gasket (1) is arranged between the inner barrel flange (11) and the inner barrel shaft flange (13), the composite sealing gasket comprises a metallic framework (2) and a rubber gasket (3) which are combined into one piece through vulcanization. According to the scheme, the composite sealing gasket (1) is of an annular flat structure and is provided with a bolt through hole (6), an inner teeth (5), a positioning structure (8) and an annular convex rib (4). The scheme has functions of gasket and seal, and can bear a relatively high radial force and a relatively high axial force which prevents from phenomena such as loosening, shaking and water-leaki
