The invention relates to high-hardness high-strength high-transparency microcrystalline glass and a preparation method and application thereof. The preparation method comprises the following steps: casting a mixture into glass, and carrying out crystallization treatment to obtain the microcrystalline glass, wherein the mixture mainly comprises Li2O, A2lO3, SiO2, CaO, SrO, ZnO, BaO, K2O, Na2O, ZrO2, Sb2O3 and NaCl; and the prepared microcrystalline glass is mainly composed of a glass matrix, spodumene crystals dispersed in the glass matrix and distributed in a dendritic manner, spinel crystalsdistributed in a granular manner and cubic zirconium oxide crystals distributed in a granular manner, and can be applied to preparation of high-strength wear-resistant transparent microcrystalline glass glaze and to preparation of mobile phone panels. The preparation method of the high-hardness high-strength high-transparency microcrystalline glass is simple and easy to implement, and has extremely high popularization value; and the prepared microcrystalline glass has the advantages of a low melting point, excellent forming processability and good application prospects.