An azilsartan solid dispersion, its preparation method and pharmaceutical composition thereof are disclosed. It overcomes the bad water solubility of azilsartan and make azistartan quickly and efficiently dissolved to use azilsartan and its pharmaceutically acceptable carrier material to prepare solid dispersion system, which is important in improving quality of azilsartan preparation. The preparation method for azilsartan solid dispersion and its pharmaceutical use are also disclosed.
