High temperature resistant inorganic grinding stone is a powder solid mixture mainly composed of modified polymer inorganic bonding materials, supplemented with reasonably graded fine aggregates, mineral admixtures, professional additives and additives, natural color powders, etc., which are precisely configured in a certain proportion and mixed by professional mechanical equipment. It can achieve A1 fire rating and has multiple colors to choose from. At the construction site, according to the instructions, only water needs to be added and mixed to form a mortar mixture, which has the advantages of stable quality and convenient construction.