The invention provides a method and a
system for improving communication security of an intelligent electric meter. The method comprises the following steps: a
peripheral device converts a meter number of a communication target electric meter into a corresponding BCD code; the
peripheral equipment embeds an equipment type identification code of the
peripheral equipment into a specified position of the BCD code to generate an equipment communication address; the peripheral equipment initiates a communication request to the target
ammeter by taking the equipment communication address as a source communication address; after receiving and analyzing the communication request, the target
ammeter respectively executes
verification items: verifying whether the BCD code in the source communication address corresponds to the own meter number; extracting an equipment type identification code embedded in the source communication address, and checking whether the peripheral equipment has the requested authority or not by querying a pre-configured
access control strategy; and if any
verification item is not passed, rejecting the communication request. According to the invention, a standard communication address which is associated with the target electric meter and contains own identity information can be dynamically generated for various peripheral devices, and device identification and security
access control are realized based on the address.