The invention discloses a power grid information three-dimensional display method based on multiple display diagram types. The method comprises the following steps of: (1) reading in a main wiring diagram of a power grid, and automatically generating a power grid main wiring diagram background plane on a computer; (2) reading in data of the power grid and location information of the power grid; (3) setting colors corresponding to the data, and mapping different values to different colors by use of three different color components according to a mapping function shown in the specification of the invention: (4) determining power grid information types and corresponding display diagram types of the data, wherein the display diagram types are three-dimensional histograms, three-dimensional curved diagrams, three-dimensional piping diagrams or three-dimensional arrow diagrams; and (5) automatically calculating and generating display diagrams according to the desired display diagram types and the data. By virtue of the method disclosed in the invention, the data of the power grid can be represented rapidly and visually with high efficiency, so that a dispatcher can rapidly know whether a fault occurs in a current system as well as the location and severity of the fault.