To provide a pressure-sensitive adhesive sheet for decoration which is excellent in followability to a curved surface, weatherability, chemical resistance, and antifouling properties and has a good metallic gloss.

In the pressure-sensitive adhesive sheet for decoration, a substrate layer, an intermediate layer, a thin metal film layer, and a pressure-sensitive adhesive layer are stacked/integrated in turn. The substrate layer made of a chlorine-containing (metha)acrylic resin sheet containing 100 pts.wt. of a chlorine-containing (metha)acrylic resin, 0.01-10 pts.wt. of a predetermined alkyl tin mercaptocompound, 0.01-5 pts.wt. of an organic phosphorous acid ester, and 1-10 pts.wt. of a benzophenone type ultraviolet absorber, the intermediate layer, the thin metal film layer, and the pressure-sensitive adhesive layer are stacked/integrated in turn.