For a series of problems in the process of watt-hour meter calibration of power supply enterprises, combining Internet metering, Internet of things, big data, such as technology, the paper puts forward the design scheme of watt-hour meter full-automatic flexible verification system, deeply researches and designs the system architecture, the function of each work unit, the system work flow and so on. Designs the parallel verification cabin based on the study of the U type verification cabin. For the technical bottleneck that watt-hour meters are transferred from the cartons to turnover box, designs the flexible manipulator and form a complete set of automatic rollover equipment, realizes watt-hour meter transport process automation. By comparing and analyzing, the full-automatic flexible verification system has more advantages than the artificial verification platform and the U type of automation line in performance index, the result shows that this design scheme can significantly improve the efficiency of verification, reduce labor cost, if it is adopted in a large scale of meter verification. The design scheme has a great practical value and popularization value.