功耗管理是可穿戴计算系统低功耗设计的一个重要手段。该文提出了一种基于蚁群算法的可穿戴计算机动态电源管理方法，通过自适应的优化功耗切换时间，在基本保证系统实时性能的条件下，能有效地减小系统各模块的平均功耗，延长系统的工作时间。仿真结果证明了其有效性。Power management is one of the most important key for lower power design of wearable computing system. A method for dynamic power management of wearable computer based on ant algorithm is proposed in this paper. Through optimizing the power conversion time adaptively, this method can reduce the mean power consumption of each module and extend the working time of the wearable computing system. The experiment results show its validity.