The invention discloses a graphical liquid-crystal display development method for an electrified railway. Electrified parameters of devices in the electrified railway are introduced through an electrified railway relay protection device, the electrified railway relay protection device adopts graphical modeling software to establish device model graphs of the devices and meanwhile establish wiringmodel graphs of various types of circuit wiring; the electrified parameters of the devices in the electrified railway are correspondingly configured to corresponding device model graphs in a one-to-one mode; the device model graphs and wiring model graphs in a graphic element library are called to form any electrified railway wiring circuit and display the circuit on a display device; corresponding logic operation relation is obtained through the electrified railway wiring circuit, and the logic operation relation and the electrified parameters of the electrified railway wiring circuit are operated; the logic operation relation and the electrified parameters of the electrified railway wiring circuit are changed, and then control results are output in real time and the devices in the electrified railway are controlled in real time according to the logic operation relation and electrified parameters which are changed through operation.