With the development of society

the construction of power grid infrastructure projects is increasing

and the complexity of power grid is also increasing

so the design requirements for power grid become stringent.The three-dimensional design technology facilitates the design of substation control system and improves the design level as a whole.This paper introduces the software of three-dimensional design technology

briefly describes the characteristics of three-dimensional design

and finally describes the optimization application of three-dimensional design technology in substation control system.