[Purpose/significance] The emergence of ChatGPT has triggered a new round of "thinking revolution" in the reshaping and development of social industry ecology, and will also empower the reshaping of library business ecolo⁃gy. [Method/process] Based on the temporal summary of the evolution of artificial intelligence in the library business ecosystem, this paper analyzes the practical foundation and logical direction that ChatGPT has given to the develop⁃ment of libraries, and constructs an application scenario for ChatGPT to support library service innovation. [Result/conclusion] Libraries should rationally control, apply and interpret this "thinking revolution", promote the ecological reshaping of industry development, create new ecological scenes in core business levels such as content production, ser⁃vice consulting and resource retrieval, and make it a new track for innovative development of libraries in the era of artifi⁃cial intelligence.