Based on the prediction that the M_S 6.6±0.2 area would be a potential seismic hazard zone in Western Xinjiang in 2017 by using thermal infrared remote sensing technology at the end of 2016 by China Earthquake Networks Center, the variation of tidal force during the imminent earthquake is analyzed. At the same time, the peak point of tidal force(August 1, 2017) is used as a time indicator for temperature anomaly background selection. Using atmospheric temperature data at the height of 50m near the surface of Chinese mainland at 18:00(UTC), the continuous daily incremental atmospheric temperature distribution images before and after the earthquake(8.2-8.13) were acquired, and the short-term and imminent atmospheric temperature changes of the Jinghe M_S6.6 earthquake on August 9, 2017 were tracked and analyzed. the results show that the earthquake occur in the low valley period of continuous periodic variation of celestial tidal generating force. the process of atmospheric temperature change shows that the atmospheric temperature increases obviously only near the epicenter in a wide range of the country, and the change went through the process:initial rise-enhancement-reaching abnormal peak-attenuation-re-enhancement-earthquake occurred-return to normal. the synchronization between the temperature-increasing process and the tidal change indicates that the tidal-generating force has the function of triggering earthquake. the change of atmospheric temperature reflects the process of in-situ stress change during the earthquake, and also indicates that comprehensive analysis of atmospheric temperature and tidal force on medium and short temporal scales will help to improve earthquake prediction ability in the practice of earthquake prediction.