This paper discusses an optimal operation method of large-scale automation verification of electrical power measuring instruments. According to the spatial distribution of verification benches, an optimal strategy is proposed using dispersion operation. Combined with the operating state of AGV and verification bench, a priority method is set up considering no smart meters for verification on temporary storing platform. A small quantity of meters with the same batch is prior to transit to smart storage to satisfy requirements of the actual distribution of electrical power measuring instruments. An empirical study is used to testify the proposed optimal operation is available and effective.