The embodiment of the invention discloses a point cloud data processing method and device for power equipment. The method comprises the following steps: processing point cloud data of power equipmentby carrying out splicing, segmentation and denoising, so as to obtain point cloud data comprising a single power device; matching the point cloud data including the single power equipment with the point cloud data templates to obtain attribute information of power equipment characterized by the point cloud data of the single power equipment; and storing the point cloud data containing the single power equipment in association with corresponding attribute information. Since the point cloud data of the single power device is included in the denoised point cloud data in the cuboid space, the stored point cloud data in each cuboid space can be used for monitoring characteristics of the shape and the environment of the single power device, and the associated attribute information can be used for identifying power equipment operating states, such as appearance, stress deformation and the like, thereby providing technical support for operation inspection of the power equipment, and compensating for the defects of three-dimensional reconstruction.