The invention relates to a decoration structure for a stone exterior wall, the decoration structure comprises a
civil engineering wall body, an embedded part, steel column keels, a steel crossbeam, steel supporting plates, a pulling and connecting piece, a plug pin and panel stones; the
civil engineering wall body embeds and fixes the embedded part, part of the embedded part extends into the innerpart of the
civil engineering wall body, the other part of the embedded part extends out of an exterior wall surface of the civil
engineering wall body, the steel column keels are fixed on the extending part of the embedded part, and the steel column keels are vertically distributed; the steel crossbeam is fixed between the adjacent steel column keels, the pulling and connecting piece is fixed onthe outer side wall of the steel crossbeam and is partially inserted between the adjacent panel stones, the plug pin vertically penetrates through the pulling and connecting piece and the steel supporting plate; a first groove allowing the plug pin to insert into is arranged at the lower end of the panel stone, and a second groove allowing the plug pin to insert into is arranged at the upper endof the panel stone; the steel supporting plate is fixed on the outer side wall of the steel column
keel, the steel supporting plates are horizontally arranged at intervals, and a plurality of
layers of panel stones are arranged between the adjacent steel supporting plates. The decoration structure has the effects of firm structure, safety, attractiveness, and simple construction.