Based on the annual and monthly prediction results of three earthquakes in Jiashi area of Xinjiang in January 2020,the tide force change of epicenter in the time range from December 13,2019 to February 3,2019 is calculated,and according to the period of the tide force as the time background indication,the daily increment distribution of ground long wave radiation(OLR) changes is analyzed by using the remote sensing radiation data of China provided by NOAA in the space of 17°N～55°N,72°E～135°E. In the four consecutive cycles of the tide force,the earthquakes occurred in the peak period of the tide,which was the only OLR enhancement region in the whole mainland of China. The radiation enhancement is synchronous with the tide,and the evolution of radiation in time and space goes through the process of micro enhancement—enhancement—micro attenuation—enhancement—calmness,which was consistent with the evolution characteristics of outward infrared radiation in the process of micro rupture—rupture—locking—Accelerated rupture—rupture experienced by rock stress strain—rupture. This shows that the tidal force changes the process of stress accumulation and imbalance in the structure during this earthquake,which has the effect of touch induced earthquake,and the change of OLR reflects the change process of the seismic stress. It also shows that in the practice of earthquake prediction,the comprehensive analysis of remote sensing radiation and tidal force change in multiple time scales will help to improve the earthquake prediction ability.