Abstract: Generative Artificial Intelligence (GAI) is profoundly transforming the educational ecosystem paradigm. The key lies in its innovating the selection and flow of educational information and reshaping the realm of educational practice. The core values of GAI in empowering teacher development is manifested as enhancing teaching efficiency, meeting teachers’ personalized development needs, and realizing their intrinsic value and social status elevation. Driven by generative AI, teacher development is witnessing opportunities such as the upgrading of teaching paradigms and more accessible resource acquisition. However, it also faces practical challenges, including realistic demands for evolving teacher roles, the need for contemporary updates in talent development philosophies, and the call for diversified approaches in educational assessment. The multi-stakeholder collaborative approach for GAI to empower teacher development embraces: the government building a policy-leading and ecosystem-supporting system, schools promoting scenario implementation and model innovation, teacher groups achieving technological integration and professional role reconstruction, technology research and development adhering to educational principles and ethical constraints, and international cooperation focusing on local concerns and standard alignment.

Key words: generative artificial intelligence, teacher development, teacher professional development, educational reform, technological empowerment