Abstract: With the help of the stable theory in Newtonian mechanics,the appropriate stable suspension condition of levitron is researched.The space distribution of magnetic field stimulated is measured experimentally by the base of the levitron.The combination between the theoretical analysis and the experimental measurement predict the district of the stable suspension of levitron,which is in agreement with the experimental observation.Then the stable suspension condition is grasped.

Key words: levitron, stability, potential well, distribution of magnetic field