Box-sealing anti-uncovering label

The utility model discloses a box sealing anti-uncovering label which comprises a label body, a back adhesive tape is arranged at the bottom of the label body, an exhaust port is formed in a notch inthe surface of the back adhesive tape, and a cavity is defined by the bottom of the label body through the back adhesive tape. According to the utility model, the structure is simple, wherein a back adhesive tape, a cavity, an exhaust port and adhesive particles are arranged at the bottom of the label body; in the label box sealing use process, the label is sealed; the bottom of the label is enclosed to form an independent cavity through the back adhesive tape; when a worker pastes a label, the label is removed; air in the label cavity is sequentially extruded to the exhaust port; air in the cavity is extruded out from the exhaust port; under the action of pressure, the back adhesive tape is extruded to deform, the exhaust port is bonded and blocked, sealing is formed in a cavity of the back adhesive tape to incre