The invention relates to the technical field of ceramic manufacture, in particular to an environment-friendly multi-layer composite ceramic product as well as a preparation method and a production method thereof. The environment-friendly multi-layer composite ceramic product comprises an inner-layer blank body and an outer-layer blank body which are tightly combined by grouting. The environment-friendly multi-layer composite ceramic product is provided with the inner-layer blank body and the outer-layer blank body; the outer-layer blank body is made of attractive and high-grade raw materials, has good combination degree with a glaze and is brightly chromogenic and high in grade; the inner-layer blank body is made of cheap raw materials and energy-saving and environment-friendly waste, thereby saving raw material cost and manufacture cost; with adoption of the production process of the environment-friendly multi-layer composite ceramic product, the thickness of the outer-layer blank body can be reduced, tight combination of the inner-layer blank body and the outer-layer blank body is guaranteed, cracking or separation is avoided, the strength of the product meets daily requirement, and the product has substantial social benefit and economic benefit.