This book constitutes the refereed post-conference proceedings of the 14th EAI International Conference on Testbeds and Research Infrastructures for the Development of Networks and Communications, TridentCom 2019, held in December 2019 in Changsha, China. The 10 full papers were selected from 62 submissions and are grouped into three sessions: AI and Internet Computing; QoS, Reliability, Modeling and Testing; and Wireless, Networking and Multimedia Application.