The 2024 2nd Future Industrial Internet symposium (FII 2024) is a premier conference hosted by Department of Information Science, National Natural Science Foundation of China, supported by The Panel of Guiding Experts of “Fundamental Theories and Key Technologies of Future Industrial Internet” Major Research Plan. The conference provides a forum for original research contributions covering Industrial Internet, Information and Communication Networks, Industrial Manufacturing, Critical Infrastructure, Flexible Manufacturing, Industrial Internet Security, Industrial Internet Platform, Cross-chain coupling. Researchers, students, and practitioners are invited to submit their papers to FII 2024.