根据鲜水河断裂带上连续动态地壳形变台阵数据，首次揭示了中国大陆板内断层现今运动的短周期现象，包括蠕变阶、蠕变坡和脉动等，其持续时间为数分钟至数十小时。发现其空间分布与断层分段（闭锁或活动段）有关；其时间分布与强地震孕育过程有关。蠕变过程符合Ｌｏｍｎｉｚ提出的对数蠕变函数，可能是断层面不均匀结构中的局部流变行为。断层短周期事件对揭示断层不均匀结构和微破裂过程动力学有重要意义，并可能发展为一种新的地震前兆 According to the continuous dynamic crustal deformation array data of the Xianshuihe fault zone, the short-period phenomena of current motion in China’s intraplate faults such as creep order, creep slope and pulsation are revealed for the first time, and the durations are from several minutes to several tens hour. It is found that the spatial distribution is related to the fault section (block or active section); the time distribution is related to the strong earthquake inoculation process. The creep process accords with the logarithmic creep function proposed by Lom-niz, which may be the local rheological behavior in the inhomogeneous structure of fault plane. The fault short-period event is of great significance for revealing the dynamics of the fault heterogeneity structure and micro-rupture process and may develop into a new earthquake precursor