The "Levitating Precision Positioner" is a specialized book that addresses the challenges and solutions in the field of precise positioning in cryogenic environments. It particularly focuses on the issues arising from the contact between components, which can affect the lifespan, accuracy, and travel distance of positioners. The authors present an innovative solution based on superconducting magnetic levitation. By utilizing a long-stroke linear slide that hovers over high-temperature superconductors, a contactless control is enabled, providing exceptional precision. This book is aimed at professionals and students in the field of engineering, especially in aerospace engineering, and offers valuable insights into modern technologies for improving positioning systems under extreme conditions.