This paper expounds on the dimension-increasing path of sustainable design driven by the new generation of artificial intelligence, and provides a certain basis and support for the rational design and application of artificial intelligence technology. Based on the application technology of artificial intelligence 2.0 and a large number of design practice cases, the value-added effect and new characteristics of design content, method, process, form, effect and other aspects of design under the concept of sustainable design are studied through hierarchical structure and comparative analysis, and the upgrading mode and technical application approach of sustainable design are explored.The development and evolution of sustainable design are affected by the new generation of artificial intelligence technology, and there are four ways to increase the dimension of sustainable design:recognition, thinking, image and construction.The continuous integration of sustainable design and artificial intelligence has become an obvious trend. The intelligent function and multi-meaning value of design and its objects will be given from the four dimensions that cognition, thinking, expression and action. The new tools and subjects will profoundly affect the design value creation of the environment, economy and society.