To enable the creation of an appearance from which a feeling of nature overflows by a method in which a green sheet made from aqueous slurry and coating concrete which is laminated on the green sheet are formed, and they are integrated by compression.

An inorganic cured body is obtained since coating concrete 1 and a green sheet 7 are integrated by compression. The strength of the inorganic cured body obtained by being cured with the green sheet 7 made from aqueous slurry 3 can be kept higher than an ordinary value, while the cured body produced by being cured with the coating concrete 1 laminated on the green sheet 7 can create an appearance from which a feeling of artificiality and imitation is excluded. In other words, the inorganic cured body and its production method can create an appearance from which a feeling of nature overflows.