Cast in place inorganic grinding stone is a powdery 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. There are multiple colors to choose from, and it can be mixed with water according to the instructions on the construction site to form a mortar mixture. It has the advantages of stable quality and convenient construction.