PROBLEM TO BE SOLVED: To suppress progress of contamination and hold initial fine appearance for a long period of time in a decorative wall surface having an irregular pattern-applied decorative film.SOLUTION: An inventive decorative wall surface is provided with a decorative film applied on a base material. A pattern film(A) and a transparent film(B) are provided as the decorative film in this order on the surface of the base material. The pattern film(A) has an irregular pattern on its surface and contains a resin component, a particulate matter, and a piperidine compound, and a ratio of the particulate matter to 100 pts.wt. solid of the resin component is 100 to 4000 pts.wt. The transparent film(B) contains silica of an average primary particle diameter 1-200 nm and a resin component.