Energy storage, as an important part of the development of smart grid, is an effective measure to enhance the integration of distributed renewable energy (DRG). The rapid development of DRG and energy storage has posed great challenges and opportunities to the safe operation of distribution network and the reliability of power supply, Therefore, domestic and foreign scholars in recent years have carried out many researches, it is one of the hot research areas. In this paper, the state-of-the-art reliability assessment methods for distribution networks including DRG and energy storages are systematically analyzed and surveyed, Key influence factors of DRG and energy storage on the reliability of distribution network are introduced, The reliability assessment modelling of distribution network components, DRG generation model and energy storage charging/discharging are established, Based on the distribution network reliability evaluation indices, this paper analyzes the distribution network evaluation methods under high penetration of distributed renewable energy and energy storage, Finally, some suggestions for the future research are put forward.