A power grid GIS (geographic information system) platform based three-dimensional modeling method for high-resolution remote sensing image equipment comprises steps as follows: performing code encoding and deployment on a back-end server of the three-dimensional power grid GIS platform, and receiving three-dimensional model data in real time; encoding and deploying a called layer, performing logic processing according to the received data, and dynamically calling layer data; accessing a three-dimensional equipment resource display interface of the three-dimensional power grid GIS platform, establishing a three-dimensional equipment resource model, and correcting the offset; pushing three-dimensional model data; performing event listening through a front-end container; loading three-dimensional equipment model data; displaying the modeling effect of the three-dimensional equipment model. With the adoption of the method, various defects of large calculated amounts, long processing time, difficulty in information acquisition and the like are overcome, and the authenticity of three-dimensional rendering is improved.