Abstract: A method for generating style based substation main wiring graph and sub-graph is studied.Based on the promulgated automatic graphical standard of the substation,a three-layer style of layout,container and graphics is proposed from high to low.As a collection of identical pixels,the container style is the key element of graphics generation for achieving automatic type-setting of pixels within the container in different scenarios.On this basis,a kind of automatic generation method of substation main wiring graph and sub-graph is put forward according to style.A set of substation graphics auxiliary generation system is then developed through instantiation and layout of style with work efficiency effectively improved.