With the acceleration of the global energy transition and the advancement of green and low-carbon development goals, the field of power science and technology is facing unprecedented opportunities and challenges. The large-scale integration of renewable energy, rapid development of new energy storage technologies, digital transformation of power systems, and widespread adoption of smart grid technologies are reshaping the industry landscape. Emerging technologies such as distributed energy, microgrids, and energy internet are becoming focal points of the field, driving the development of power systems towards greater efficiency, intelligence, flexibility, and sustainability. However, these advancements also impose higher requirements for the reliability, stability, and security of power systems, necessitating significant breakthroughs in fundamental research, technological development, and industrial applications. To provide an important platform for academic exchange and sharing of research achievements in the global power engineering field, 2025 IEEE 3rd International Conference on Power Science and Technology (ICPST) will be held from May 16 to 18, 2025, in Kunming, Yunnan, China. The conference is sponsored by Kunming University of Science and Technology (KUST), hosted by School of Electrical Power Engineering, Kunming University of Science and Technology, School of Automation, Central South University, School of Automation, China University of Geosciences (Wuhan), patrons with Huazhong University of Science and Technology, Shanghai Jiao Tong University, Northeast Electric Power University, Guizhou University, and Test Department of Electric Power Dispatch Automation System and Equipment (Nanjing)-China Electric Power Research Institute, China Southern Power Grid, Yunnan International Co.,LED, IEEE PES China WIP, media supports from Journal of Protection and Control of Modern Power System (PCMP), Journal of Power System Protection and Control, Journal of Electric Power Construction (EPC), Proceedings of the CSEE, Journal of Power System Technology, Journal of High Voltage Engineering, Journal of Electric Power Information and Communication Technology, CESS Journal of Power and Energy Systems, Journal of High Voltage, Journal of New Type Power Systems, Journal of Information Processing in Agriculture (INPA), Journal of Global Energy Interconnection, Journal of Thermal Power Generation, Journal of Power Generation Technology, Journal of Electric Power, Journal of Automation of Electric Power Systems, Journal of Modern Power Systems and Clean Energy, Journal of Southern Power Grid Technology, Journal of Integrated Intelligent Energy, Journal of Electrical Measurement and Instrumentation, Shandong Electric Power, Distribution & Utilization.