The present invention discloses an automatic sorting system of electric energy meters, which comprises a full carton conveying line, an empty carton conveying line, a control system, a robot, a carton blocking device, a carton clamping device, a carton removing device, an intelligent claw, and a rack, wherein the robot, the carton blocking device, the carton clamping device, the carton removing device, the intelligent claw and the rack are respectively connected with the control system, the intelligent claw scans the loading-into-carton state of the electric energy meter in the carton and uploads to the control system, and the control system determines the sorting position according to the electric energy meter position information and the loading-into-carton state of the electric energy meter. The present invention provides the automatic sorting system integrating the detecting and the grabbing, wherein the robot is adopted to perform automatic sorting so as to reduces the labor intensity of the worker, the intelligent claw carried on the robot terminal end integrates the detecting and the grabbing so as to reduce the cost and increase the production efficiency and the equipment utilization rate, the automatic sorting system achieves the functions of the automatic sorting of the electric energy meter and the automatic removing of the empty carton, and the loading-into-carton position information and the forward and reverse loading-into-carton information of the electric energy meter can be automatically recognized so as to increase the grabbing efficiency and the grabbing reliability of the electric energy meter.