The utility model provides a labeling reliability detecting device characterized by comprising a frame, a tool plate, a movable clamping jaw, a motor assembly, a sensor, a blowing test assembly, and an intelligent analyzing assembly. The tool plate is installed in the frame and is used for bearing labeled products. The movable clamping jaw is installed in the frame and is used for clamping the labeled products. The clamping jaw control assembly is installed in the frame and is connected with the clamping jaw. The motor assembly is installed in the frame, is used for providing motor, and is connected with the clamping jaw control assembly. The sensor is installed in the frame, is used for detecting the label positions of the labeled products, and is connected with the motor. The blowing test assembly is installed in the frame, is used for detecting the firmness degree of the labels of the labeled products, is connected with the motor assembly, and comprises an air hose and an air pump. The intelligent analyzing assembly is connected with the sensor and is used for determining and analyzing the relative positions of the labels and the labeled products. The labeling reliability detecting device may detect whether a label is pasted, whether the position, relative to the labeled product, of the label is correct, and the firmness degree of the label.