探讨了小尺度空间范围内地震能量关于时间和空间分布的统计自仿射分形特征，从中得到了如下认识：地震能量关于时间的分布是自仿射分形的，代表分布结构特征的Ｈ值小于１／２，因而时间关联函数Ｃ（ｔ）＜０，表明地震能量关于时间分布的变化过程具有负相关效应；地震能量在空间上分布也具有自仿射分形特征，有限震例表明，Ｈ值小于但接近于１／２，表明地震能量的空间分布具有更复杂的变化过程 The statistical self-affine fractal features of seismic energy in time and space are discussed in the paper. The distribution of seismic energy with time is self-affine fractal, and the H value representing the distribution structure is less than 1 / 2, so the time correlation function C (t) <0, indicating that the seismic energy has a negative correlation effect on the time distribution; the seismic energy distribution also has a self-affine fractal feature. The finite case shows that the value of H is less than But close to 1/2, indicating that the spatial distribution of seismic energy has a more complex change process