The invention discloses an automatic generation method for transformer substation technical transformation engineering. The method includes the step that an automatic design system for transformer substation technical transformation engineering is provided, wherein the automatic design system for transformer substation technical transformation engineering comprises an engineering type selection module, an electrical parameter check module and a design result generation module. According to the method, modular classification is carried out on all engineering types in the transformer substation technical transformation engineering, involved devices can be directly called, designers only need to input design conditions and perform simple modification, and then main materials, auxiliary materials and instruction files needed by the engineering can be conveniently output, so that design reports and martial statistical tables are more comprehensive and more standard, the design time of the designers is greatly shortened, the error probability of the designers is greatly reduced, and the engineering construction cost is easily reduced.