The invention discloses a method for quickly generating a single line diagram and a network diagram based on a dispatching figure. The method is characterized by comprising the following steps: step 1, obtaining the dispatching figure of a multi-feeder group of a to-be-generated single line diagram and generating corresponding SVG file data according to SG-CIM standards; step 2, performing depth-first search according to a relationship of interconnection switches, establishing an adjacency relation table of devices, and decomposing the dispatching figure of the multi-feeder group into dispatching figure data of a plurality of single feeders; and step 3, automatically generating a corresponding single line diagram according to a topological relationship of the devices on the single feeders by utilizing an automatic diagram forming algorithm. Single line diagrams are combined into the network diagram according to an interconnection relationship of the feeders. The efficiency and quality of automatically generating the single line diagram and the network diagram by the dispatching figure of the multi-feeder group are improved and the timeliness is higher.