Abstract: Based upon the statistical studies of focal mechanism solutions of 37 moderate-small earthquakes (Ms = 2.1-6.0) during the period from 1973 to 1977 in Jiangsu-Shandong-Anhui-Henan region, the preferred principal compressive stress of recent tectonic stress field is in NEE (about 76?)and the tensile stress in NNW (about 344?).Considering that both the long axes of isoseismals for some moderate-small shocks and the Late Tertiary faults are characterized by a NNE trend in predominance, we inferred the new-formed seismic rupture to be successive. Finally, this paper discusses the differeence between the recent tectonic stress fields in its northern and southern part.