The invention discloses an automatic cover taking device for an electric energy meter packing case. The automatic cover taking device comprises a machine frame module, a cover taking cylinder and an uncovering module. The uncovering module comprises an upper cover uncovering assembly and a paper support uncovering assembly. The paper support uncovering assembly comprises a floating frame, a connecting rod, an arc-shaped elastic clamping piece and a clamping cylinder. The upper cover uncovering assembly comprises an upper cover uncovering cylinder, a vacuum generator, a plurality of suction cups and a gas circuit cavity. The automatic cover taking device is fixed onto a production line of packing case opening through the machine frame module; after the packing case which is divided into an upper layer and a lower layer during the former process moves to the position under the cover taking device, an upper cover and a paper support of the packing case are taken down through the combined action of the cover taking cylinder and the uncovering module. The automatic cover taking device for the electric energy meter packing case achieves automatic cover taking instead of manual cover taking, and cover taking work efficiency is high, so the labor intensity of workers can be lowered to a great degree; the influence on the body health of operators is small, and safety is good.