In view of the problem traditional transmission line surveying data processing and operation system not meeting the current requirements of 3D design digitization

this paper constructs builds a multi-source heterogeneous data multi-terminal digital collaboration system

integrates high-resolution orthophoto images and lidar point cloud data

creat a data processing mode with data elements as the core

and forms a standardized operation mode of 3D surveying and mapping internal and external digital collaboration of transmission lines.The experimental results show that the research results can effectively improve the efficiency of three-dimensional drawing of transmission lines

and promote the transformation and upgrading of transmission line mapping to intelligent and digital directions.