This paper briefly introduces the transformation direction of power plants and the development trend of introducing intelligent inspection robots. Considering that the hybrid particle swarm optimization algorithm has strong global search capability and the premature phenomenon is not serious, the algorithm is used to solve the path planning problem of mobile robots. The simulation results obtained from the coordinates of the power plant equipment to be inspected in the abstract model are compared with the results of other algorithms to verify the advantages of the hybrid particle swarm algorithm. Provide a reference for the actual use of intelligent inspection robots in power plants.