The invention aims to provide a grid equipment graphic element allocation method. The method includes: establishing a spatial GIS (geographic information system) graphic element allocation model comprising an equipment legend table, a graphic element style rule table, and a style table; finding out corresponding legend styles according to equipment legend rules and rendering in the graphic element allocation process. The grid equipment graphic element allocation method which is more flexible and softer to expand is provided according to China southern power grid GIS graphic element specifications and is provided in order to overcome the defects of the existing grid GIS graphic element allocation method. A graphic element allocation model and a correspondence amongst each style of grid equipment, graphic element display rules and graphic element symbols are established according to a relational database, so that various grid devices under the GIS system platform can be conveniently monitored and maintained in real time.