The invention provides a preparation method of feather glaze. The preparation method comprises steps as follows: (1) preparation of ground glaze slip: a certain ground glaze material in parts by weight is mixed with a proper amount of water, the mixture is subjected to ball milling, the glaze material is ground to the particle size of 150-200 meshes, and ground glaze slip with the mass concentration of 50%-60% is obtained, wherein the ground glaze material is prepared from raw materials in parts by weight as follows: 17-23 parts of melilite, 50-56 parts of quartz, 6-8 parts of talc, 6-8 partsof calcite, 6-10 parts of Suzhou clay and 4-6 parts of alkaline stone; (2) preparation of cover glaze slip; (3) glazing: 1) the ground glaze slip prepared in the step (1) is applied to a biscuit-firedbody, and ground glaze is formed and aired; 2) the ground glaze is wetted with water, and the cover glaze slip prepared in the step (2) is applied; (4) firing at the temperature of 1,280-1,320 DEG C.The feather glaze prepared with the provided preparation method of the feather glaze has a feathery effect on the glaze surface, the prepared feather glaze is not prone to peeling, a process is simple, and the feather glaze can be combined with different kinds of cover glaze to form different glaze colors.