The invention provides an electric energy meter, which includes a casing, a relay and a terminal button assembly. The relay is arranged in the casing, and the conductive sheet of the relay is inserted into the terminal button assembly. Fixed connection, the terminal button base includes a side wall, a bottom wall connected to the side wall, and a limiting plate parallel to the side wall. The side wall, the bottom wall and the limiting plate form a receiving groove for the insertion of the conductive piece. A U-shaped groove is provided to form the main body of the bottom wall and the cantilever beam. The cantilever beam is provided with a first positioning part, and the conductive sheet is provided with a second positioning part matched with the first positioning part. In the electric energy meter provided by the present invention, the side wall, the bottom wall and the limit plate form a receiving groove for inserting the conductive sheet of the relay, and the receiving groove has a certain positioning effect on the conductive sheet, the first positioning part and the second positioning part Cooperate with each other, so that the conductive sheet is completely fixed in the terminal button assembly, without using screws to fix.