The invention discloses a hierarchical display method of CIM resources of a power distribution network system. The method includes the following steps that a CIM/RDF model file including standard power grid model resources is loaded; resources in the RDF file are searched for according to hierarchical structure display of power distribution network resources; due to hierarchical arrangement, power grid sources and node coordinates of attribute data of the power grid sources are positioned, queuing is performed, and a tree-shaped topological structure model is built; whether overlapping happens or not is judged, and if overlapping exists, overlapped nodes are moved; the found power grid resources and the attributes of the found power grid resources are displayed. According to the hierarchical display method, by analyzing the power grid resources in the CIM/RDF model file and performing visualized display, compared with a traditional method that text in the CIM/RDF model file is purely looked up, the hierarchical display method is more visual and more convenient, efficient and flexible to maintain, and therefore working efficiency of workers is improved.