With the development of the sixth generation (6G) of wireless cellular systems, localization-based service has obtained more and more attention. Terahertz (THz) band with its ultra-broad bandwidth can provide low latency and centimeter-level high accuracy for indoor localization. In the meanwhile, with its narrow beam intrinsic property, the performance of the THz system will be highly affected by user micro-mobility such as shakes and rotations, which means the original THz localization methods may all fail without consideration of micro-mobility. To solve the problem, in this work, we proposed an ultra-accuracy THz indoor localization method, by adding the user equipment (UE) micro-mobility model to the original CSI-based localization model. Simulation results show that our methods provided a better localization performance, and the accuracy is within 5cm. With a new angle measurement, the localization system can reflect the real-time position and direction of the control unit in the scenario of industrial Internet-of-Things (IoT).