Power inspection is the key to ensuring the safety and stability of power equipment.The traditional inspection method is mainly manual, which has the disadvantages of high risk, low efficiency and easy to miss inspection, but it is difficult to meet the requirements of power inspection.Path planning technology is one of the key technologies for power inspection robots by solving inspection routes to achieve traversal inspection and autonomous obstacle avoidance.We firstly analyzes the inspection contents and requirements of different power scenarios, then reviews the path planning technology of power single inspection robots and collaborative inspection robots, and summarizes the application effects of the path planning technology of power inspection robots in power stations, substations and transmission line scenarios.Finally, an outlook is provided on the key technologies for the path planning of power inspection robots, which will be developed in the direction of multi-source heterogeneous information fusion, deep reinforcement learning and cloud-edge-end collaborative path planning.