The invention relates to a labeling device, in particular to an outer wall labeling device for an empty fermented bean curd can. According to the outer wall labeling device for the empty fermented bean curd can, the labor intensity of workers is lowered, operation is convenient and fast, and the applicability is good. The outer wall labeling device for the empty fermented bean curd can comprises a base, a first support, a material storage frame, a second support, a first sliding sleeve, and a material supporting frame, wherein the first support is arranged in the middle of the base, the material storage frame is arranged on the upper side of the first support, the second support is arranged on the lower side of the inner wall of the material storage frame, the first sliding sleeve is rotationally arranged on the second support, and the material supporting frame is arranged on the first sliding sleeve in a sliding mode. According to the outer wall labeling device for the empty fermented bean curd can, a second disc drives telescopic blocks to rotate, so that a first disc is driven to rotate, the material supporting frame is further driven to rotate, the material supporting frame can rotate to drive the empty fermented bean curd can to rotate, labeling of the empty fermented bean curd can is facilitated, and the driving effect is achieved.