This report summarizes the contributions presented at the 12th IAEA technical meeting on control, data acquisition and remote participation for fusion research, held in Daejeon, Republic of Korea, 13–17 May 2019. The meeting brought together more than 70 experts from nuclear fusion research sites worldwide. The main topics of the meeting were plasma control; machine control, monitoring, safety and remote manipulation; data acquisition and signal processing; database techniques for information storage and retrieval; advanced computing and massive data analysis; remote participation and virtual laboratory; and fast network technology and its application.