本文通过对阿尔山五岔沟地区在某些测震学指标方面的特征分析,并与内蒙博克图1980年5.6级地震和其它几次中强地震震前特征对比,研究,探讨了该区近几年内地震活动趋势.笔者认为,阿尔山五岔沟地区,当前可能处在中强地震孕震阶段的第一阶段末期或第二阶段初期,即相当于膨胀—不稳定模式(IPE)中的岩石均匀微破裂向微破裂加速的过渡阶段. In this paper, by analyzing the characteristics of some seismological indicators in the Wuchagou area of ​​Aershan and comparing with the pre-earthquake features of the 5.6-magnitude earthquake in Inner Mongolia Bock’s 1980 and several other moderate-strong earthquakes in 1980, The trend of earthquake activity within a few years.The author believes that the Wushagou area in Arshan may now be at the end of the first phase or the second phase of the seismogenic phase of the moderate-strong earthquakes, which is equivalent to that in the inflated-unstable mode (IPE) The transition from uniform micro-fracture to micro-crack acceleration.