The invention relates to a power network planning platform, in particular to a B-type and C-type regional medium-
voltage power 
network planning and design platform based on three-dimensional real scenes, belonging to the technical field of power network planning. As the high-altitude tilt acquisition of the unmanned aerial vehicle is carried out, based on 3D 
visualization technology, the parameters, images and spatial information of 
electric power equipments in current 
power grid are collected, sorted and inducted effectively, and the integrated three-dimensional model of 
electric power grid information is established according to the urban 
landform and building characteristics. Combined with the current equipment parameters, operation data and 
load forecasting, coordinate the relationshipbetween 
urban planning and power network planning, implement 
station planning and 
land use, line corridor planning and 
route selection. Thus, the 
power grid planners can quickly, completely and visually understand the past, present and future of the urban 
power grid, and fully understand the site to achieve visual power grid planning.