The invention discloses a ceramic composite polyurethane insulation and decoration integrated panel serving as an insulation and decoration material which is used for a building outer wall. The integrated panel comprises a bottom veneering layer, an insulating layer and a top decoration layer; the bottom veneering layer is made of dual-layer composite non-woven fabrics; the insulating layer is made of rigid polyurethane foam materials; the top decoration layer is a hard ceramic plate; permeated type physical combination is formed between the insulating layer and the bottom veneering layer as well as between the insulating layer and the top decoration layer. A method for preparing the ceramic composite polyurethane insulation and decoration integrated panel is further disclosed. The integrated panel is manufactured by the adoption of the preparation method, so that the one-time continuous formation is achieved, and no secondary composition is required. The ceramic composite polyurethane insulation and decoration integrated panel is simple in preparation process, excellent in compressive strength and tensile strength light in mass, good in fire-retardant capability and thermal insulation performance and suitable for being used as the building outer wall material.