The current conflictual dynamics underlying high-tech rivalry between China and the United States and the management of collateral damages by middle-power countries emanate from the clashes of techno-statecraft. Each country’s pursuit of technological superiority for its own prosperity, security, and prestige through deep and wide state intervention has aggravated the situation. Against this backdrop, our paper attempts to elucidate the dynamics of techno-statecraft of China, the United States, and South Korea. First, we examined the concept of techno-statecraft, which can be differentiated from that of economic statecraft, as an analytical framework of the paper. Second, we looked into China’s technological challenge as shaped by its techno-statecraft. Third, we traced the American threat perception of China’s technological rise and its techno-statecraft response. Fourth, the paper discussed the dilemmas Asian countries are currently facing and their choices through a case study of South Korea. Finally, it draws some theoretical, empirical, and policy implications.