Abstract: The biggest difference between the new power system and the traditional power system lies in the proportion of new energy generation. With the large amount of distributed energy access, the structure of the power system becomes more complex, the contained elements show a diversified trend, and the operation state has flexible changes. At the same time, the power system also faces the challenge of how to reduce the fluctuation caused by the grid connection of new energy. The reasonable allocation of distributed energy storage can effectively smooth the fluctuation, improve the power quality and the overall stability of the power grid, and also improve the consumption rate of new energy, therefore, it is necessary to conduct in-depth research on the allocation of distributed energy storage. We firstly investigate and summarize the development status of distributed energy storage. Then, starting with the advantages of distributed energy storage under the new power system, we establish a sound rational configuration process of distributed energy storage by analyzing different application scenarios on the power supply side, the power grid side and the user side, and then perform research on the establishment of optimization model and the selection of optimization methods. Moreover, the common objective functions and constraints are summarized, and the applicability of typical optimization algorithms is discussed. Finally, according to the current research status of distributed energy storage configuration, the problems that need to be improved in the optimization process are pointed out.