本文指出了目前文献上在旋转弹簧临界角速度的研究中存在的问题，给出了物理上符合实际的旋转弹簧临界角速度的定义.在导出旋转弹簧内部的弹力分布基础上，根据该定义确定了旋转弹簧的临界角速度和临界长度表达式，并讨论了相关问题．

 This paper points out the problems existing in the current research of critical angular velocity of rotating spring on a horizontal plane, and gives the physical definition of critical angular velocity of rotating spring. On the basis of deriving the elastic force equation of each point inside the rotating spring, the critical angular velocity and critical length formulas of the rotating spring are deduced from the definition. Then the related problems are discussed.