The invention discloses an automatic positioning system for electric energy meter transmission. The automatic positioning system comprises a transmission belt, pressing blocks, a stopper, a guide rail and a transfer mechanical claw assembly, wherein the guide rail is arranged in the conveying direction of the transmission belt; the transfer mechanical claw assembly is arranged on the guide rail and is used for placing an electric energy meter on the transmission belt; the pressing blocks are arranged on one side of the transmission belt and are used for fixing the electric energy meter to be conveyed to the transmission belt; and the stopper is arranged at one end of the transmission belt and is used for buffering and storing the electric energy meter at a working position. According to the automatic positioning system disclosed by the invention, the automatic positioning of the electric energy meter at a high precision is realized through a mechanical manner, the structure is simple, and the stability and the reliability are high; and besides, the occupied area is small, the production efficiency is improved, and the cost of a product is effectively reduced, so that the cost of the complete product is reduced, and the competitive advantages of the product are enhanced.