An allisartan isoproxil solid dispersion, pharmaceutical composition comprising the same and use thereof. The Allisartan Isoproxil solid dispersion consists of Allisartan Isoproxil and a pharmaceutically acceptable carrier material, the carrier material comprising a solubilizing carrier and a surfactant, the mass ratio of Allisartan Isoproxil to the surfactant being 1:0.01˜0.10.