The present invention relates to an inorganic wood-like material, which can be used as a sheet instead of wood, characterized that the said material mainly includes magnesite, magnesium chloride, lime powder, glass fiber, talcum powder and kaolin. The method of preparing the same includes pulverizing, mixing this material in different proportion and molding the mixture to obtain the inorganic wood-like material of the present invention. The material can exhibits a laminated structure comprising wear-resistant surface layer (11), an inorganic material layer (12) and a wear-resistant bottom layer (13). The material can be used for buildings. It is non-toxic, odorless, rustless, non-inflammable and non-oxidable. Its appearance looks like wood and it is easy to be processed. The material is a good environment-protecting material and will be widely accepted by industry and commerce.