The utility model discloses a mechanical type protection device of long -range system of checking meter, observation window has been seted up at the top of upper cover, the fixed installation upper plate that has cup jointed in bottom of upper cover, attachment fastener is all installed to the bottom left and right sides of installation upper plate, the inner chamber of upper cover is provided with electric energy meter PCB board, electric energy meter intelligent display device is installed at the top of electric energy meter PCB board, the outer wall of electric energy meter intelligent display device is pegged graft and is had the wiring sheath, the bottom of electric energy meter PCB board is provided with and installs upper plate assorted mounting plate, the catching groove is fixed with attachment fastener matched with to last having seted up of mounting plate, and this mechanical type protection device of long -range system of checking meter, simple structure, effectual prevention lawless persons utilize the circuit signal of electromagnetic signal interference electric energy meter collection, disturb the electric energy meter circuit to avoid steal electricity's purpose, prevent that the long -range system of checking meter from suffering artificial destruction and electromagnetic signal's interference, reduces economic loss.