The invention relates to a preparation method for a polished-crystal crackled glaze tile. The preparation method includes the steps of: press moulding a ceramic green body, applying ground glaze and surface glaze, sintering the tile, printing color glaze, performing primary crack frit dry granule material distribution, performing primary low-temperature sintering, performing secondary transparent frit dry granule material distribution, performing secondary low-temperature sintering, and performing gold plating and polishing. In the invention, a special high-boron frit being high in expansion coefficient is employed, a dry granule stacking method is employed, and the low-expansion-coefficient transparent polished frit dry granule is employed for shielding the cracks, so that the cracks can be blocked for preventing dirt deposition, and meanwhile, through the high-temperature-sputtering multi-arc ionic gold plating process and high-glossiness crystal polishing process, the tile is more than 90 degrees in surface glossiness, so that the cracks has an intensive under-glaze texture and crystal-like sense, and in addition, the method ensures the flatness and internal performance of the tile.