The invention provides a power network overhaul work intensity graphical display method based on a GIS (geographic information system) technology. The method comprises the following steps that overhaul plan data is obtained; an overhaul plan construction period is counted; the overhaul plan work intensity is counted; the overhaul plan work intensity is subjected to grade defining; GIS data is obtained, and a mapping relationship is established; the overhaul plan work intensity is subjected to graphical display. The method has the advantages that the defects that in a power system, the power network overhaul work intensity cannot be intuitively displayed, and the condition is unfavorable for statistical analysis are overcome, the GIS graphical mode is used for intuitively displaying the power network overhaul work intensity, the integral overall planning and the reasonable arranging can be easily realized, and the resource waste or even the power failure accidents due to thoughtless consideration on the overhaul arranging work can be avoided.