超导磁悬浮是利用超导体的抗磁性实现其在磁场中悬浮的力学现象，其物理本质是超导体在永磁体轨道产生的非均匀磁场中受到的电磁约束力与其重力处于稳定平衡状态.本文报道了一种基于3π莫比乌斯环的闭合钕铁硼永磁体轨道，由此实现钇钡铜氧高温超导体的悬浮、平动、回旋以及悬挂的超导磁悬浮实验演示装置，优化了磁铁及轨道几何尺寸等参数对磁场分布及电磁约束力的影响，实现了长达10分钟的静止悬浮展示效果，为科普展示和大学物理实验教学提供了全新平台.

Superconductor levitation refers to the phenomenon in which a superconductor levitates due to its diamagnetic nature， when put in an external magnetic field. This mechanical equilibrium is achieved when gravity balances out electromagnetic force exerted on superconductor by permanent magnets. In this paper a demonstration setup for superconductor levitation via a neodymium-magnet-based 3π-Mbius strip track is introduced. The superconductor may levitate above， move along， rotate about and suspend below the track. Parameters including magnetic field distribution and electromagnetic force， such as geometry of the track and maximum energy product of the magnets， are optimized. A demonstration duration of 10 minutes is achieved by using a YBa2Cu3O7 superconductor， and this setup is a valuable asset to science exhibitions and demonstration of superconducting physics.