In recent years,seismic activity in Changning area of Sichuan Province has been relatively high,especially for the M_S6.0 earthquake in June 2019,which has been brought wide attention of society and scientific researchers. In this study,we used the double-difference method to relocate the earthquakes within one year before and after the M_S6.0 earthquake. Further,we applied the gCAP waveform fitting method to obtain the focal mechanism solution of 14 earthquakes with M_S>4.0. The spatial distribution characteristics of seismic activities in Changning area was comprehensively analyzed,and the following main understandings were obtained:① The seismogenic structure of the M_S6.0 earthquake in 2019 was the high-dip thrust fault with NW direction in the Changning anticline,and the focal depth of the seismic sequence was deep in the west and shallow in the east,indicating the reactivation of the pre-existing fault in NW direction. ② The frequency of seismic activity in the Jianwu anticline area in the south is relatively higher and shows the characteristics of cluster distribution,which is speculated to be closely related to shale gas exploitation activities. ③ The difference of seismic activity between the north and the south of Changning area is controlled by the change of the direction of the local stress field. The historical salt mining in the north and shale gas mining in the south,as well as the horizontal difference of the physical properties of rock medium directly affect the spatial pattern of seismic distribution.