Abstract: The Shaowu-Heyuan active fault zone bordering Fujian,Jiangxi and Guangdong Provinces,forms the west boundary of the sub-seismic zone of the southeast coastal area of China.It includes three sub-zones different in geometry and features.They are the northern Shaowu-Shicheng Fault Zone,the central Ruijing-Xunwu Fault Zone,and the southern Longchuan-Heyuan Fault Zone with a total length of about 750km.The three are not connected end to end,but en echelon arranged with the southern one overlapping successively the northern in a right manner.This article deals mainly with the activity of the part running through the Jiangxi Province in connection with the distribution of earthquakes,hot springs,and ground fissures and the effect on the stability of the earth's crust.The author comes to the conclusion that there is little possibility for a large earthquakes to occur along the Shaowu-Heyuan Fault Zone,though some scattered smaller ones not excepted.