The invention relates to equipment for mounting a lead seal on an electricity meter, in particular to a lead seal transfer mechanism. The lead seal transfer mechanism comprises a pair of transverse sliding rails, a longitudinal sliding rail with the two ends being connected to the transverse sliding rails in a sliding mode, a hanging base connected to the longitudinal sliding rail in a sliding mode, a lifting cylinder which is telescoped downwards, a suction cup, a transverse driving mechanism used for driving the longitudinal sliding rail to slide on the transverse sliding rails, and a longitudinal driving mechanism used for driving the hanging base to slide on the longitudinal sliding rail. A cylinder body of the lifting cylinder and the hanging base are connected together, and a piston rod of the lifting cylinder and the suction cup are connected together. The lead seal transfer mechanism can fixedly adsorb the lead seal and further make three-dimensional movement of the lead seal, and the problem that automatic installation of the lead seal can be restricted due to lack of a lead seal three-dimensional movement mechanism is solved.