Blue Girl Organic Farm is located in Wong Nai Tun Village, Yuen Long, Hong Kong. Long committed to organic farming, it combines local fresh produce supply, farming experience and food-and-agriculture education, making it a representative local organic farm in Hong Kong. Guangzhou Xingeng deployed AIoTagricultural sensing devices, continuously collecting field environment and crop growth data, and connected them to agricultural foundation models and AIagricultural AI agents to intelligently analyze changes in the growing environment, providing the farm with farm management, irrigation control, risk alerts and planting decision support. The project builds a digital management system of "real-time sensing—smart analysis—scientific decision-making", upgrading traditional experience-based farming to data-driven, AI-assisted and precision management, and creating a demonstration case for the digital and intelligent upgrading of Hong Kong's local organic agriculture.