To provide an aqueous solution of an organic inorganic composite which has a three-dimensional network formed of a clay mineral and a polymer, has an easily controlled composite structure and particle diameter and has excellent film-formability and adhesion with a base material, and is stably dispersed in water and a process for simply producing the aqueous dispersion in a broad range of a clay mineral content in a short time.

The organic inorganic composite dispersion is obtained by dispersing organic inorganic composite particles (X) in which a polymer (P) of a monomer including a (meth)acrylamide monomer (a) is incorporated with at least one inorganic material (B) selected from a water swelling clay mineral and silica into an aqueous medium (C).