Since the launch of the new round of power system reform in China in 2015, the increasingly complicated market settlement relationship and the network -load interaction mode under the market environment are desiring new changes in existing metering system. The general situation of the smart metering system in Texas power market is investigated firstly. By using smart meters and related communication technologies, the system improves the access and utilization efficiency of energy data, and effectively sup-ports the operation of the competitive electricity market in Texas.Then, the development and application status of power metering system in China is summarized, and the problems faced by the metering system under the new power reform situation are sorted out.Finally, suggestions are put forward for the reform of the current measurement system in China to adapt to the complex settlement and network-load interaction in the market environment.