The invention provides an adjustable stone material dry suspending mounting structure. The adjustable stone material dry suspending mounting structure comprises a plurality of keels, a first connecting piece and a second connecting piece, wherein the plurality of keels are fixedly arranged on a wall surface, each keel is a hollow pipe body, corresponding through hole groups are arranged on two opposite side walls of each keel, and each through hole group comprises multiple through holes arranged along the length direction of the corresponding keel; the first connecting piece is provided with a first connecting part which is detachably connected in the through holes; and the second connecting piece is slidably connected to the first connecting piece along the horizontal direction, and the second connecting piece is also fixedly connected with a stone material. The adjustable stone material dry suspending mounting structure can carry out rapid adjustment on the mounted stone material, so that the problem that a mounting error is caused by stone material processing deviation or measurement deviation can be effectively overcome.