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In order to cope with the development trend of distribution network, the demand for terminal to have the ability of IoT has become increasingly prominent. This paper firstly expounds the development trend of low-voltage distribution network, and emphasizes the technical transformation of the core equipment of low-voltage distribution network-smart terminal; secondly, it puts forward the software and hardware architecture of smart terminal suitable for the IoT, and emphasizes the cooperative capability of the software and hardware platform; and then it introduces the key technologies of the smart terminal, integrates model standardization and virtualization technologies, realizes the plug and play of information flow, and supports application through engineering; finally, it analyzes the work plan of the next stage, and designs to improve the functions of the smart terminal.