The utility model discloses a disposal lead seal which belongs to lead seal for packaging container; the lead seal comprises a locking mechanism and a label; wherein, the locking mechanism is composed of a locking wire and a locking cam with keyhole the locking wire and the locking cam are integrated into a whole;metal sheets with barb are arranged on the keyhole; a support frame is arranged on the locking wire; the label is constructed by the sequential connection of an electronic chip, an antenna waveguide zone and an antenna transceiver zone; the electronic chip is arranged in the locking cam; the antenna waveguide zone and the antenna transceiver zone are all arranged in the locking wire; the other end of the antenna transceiver zone is positioned at the end part in the locking wire far away from the locking cam. The disposal lead seal loses effectiveness once the disposal lead seal is damaged; thereby, the disposal lead seal enhances the safety of lead seal protection.