In this paper, the relocating of the aftershock sequence of the 2017 M_S6.6 Jinghe earthquake in Xinjiang was implemented using CENC data with the Double Difference relocation method. By the time of 16:00 p.m. on August 14, 2017, totally 209 aftershocks were relocated. It shows that the aftershocks are distributed along EW direction or NWW direction with the length of 50km and the width of 17km. Since the most aftershocks are located at the western area of the epicenter, the main earthquake might rupture unilaterally from the east to the west. The hypocenters of the aftershock sequence ranges from 1km to 25km, among which most strong aftershocks range from 8km to 17km. The first 2 days after the mainshock is an active period of seismicity, after which it becomes inactive. Horizontally, the seismicity of the eastern aftershock area attenuates rapidly while the western area decays slower. The mainshock is much stronger and deeper compared with the 2011 M5.0 Jinghe earthquake which occurred 21km away from this earthquake. But still the focal mechanism solutions of these two quakes are similar, and both are thrusting earthquakes. Considering the regional structure background, it is highly likely that the Kusongmuqike piedmont fault might be the causative structure of the earthquake.