This book constitutes the refereed proceedings of the 9th EAI International Conference on Smart Grid Inspired Future Technologies, SmartGift 2024, which was held in Hong Kong, China, during December 9–10, 2024.The 31 full papers were presented in this volume were carefully reviewed and selected from 78 submissions. They focus on Smart Grid and Energy Systems; Vehicular Networks and ITS; Communication Technologies; AI and Information Security; and Autonomous and Electric Vehicles.