A statistical analysis is done to study the spatio-temporal features of earthquake activity in the Tianshan seismic belt triggered by tide,based on Schusters test. The data we choose is the M L≥2. 0 earthquakes from January 1,2010 to August 31,2012 in eastern Tianshan,and the calculation is on tidal body stress. The results show that the p-value based on the time window smoothing of Schusters test corresponds better with the strong earthquakes in the Tianshan seismic belt,especially for a long time before the November 1,2011 Nilka M S6. 0 earthquake,when the p-value of the Schusters test was always lower than the threshold of 0. 05 for tidal trigger of earthquake,but after the Nilka M S6. 0 earthquake,that value was quickly restored to a high level,which reflects a close relationship between the Nilka M S6. 0 earthquake and the Earth tide. According to the p-value based on the spatial window smoothing of Schusters test,the Nilka M S6. 0 earthquake was at or near the tidal triggering area. Thus we can see from the spatio-temporal results that the Nilka M S6. 0 earthquake was obviously triggered by Earth tide. A statistical analysis is done to study the spatio-temporal features of earthquake activity in the Tianshan seismic belt triggered by tide, based on Schusters test. The data we choose is the ML ≥ 2. 0 earthquakes from January 1,2010 to August 31,2012 in eastern Tianshan, and the calculation is on tidal body stress. The results show that the p-value based on the time window smoothing of Schusters test preferably better with the strong earthquakes in the Tianshan seismic belt, especially for a long time before the November 1, 2011 Nilka M S6. 0 earthquake, when the p-value of the Schusters test was always lower than the threshold of 0. 05 for tidal trigger of earthquake, but after the Nilka M S6. 0 earthquake, that value was quickly restored to a high level, which reflects a close relationship between the Nilka M S6. 0 earthquake and the Earth tide. According to the p-value based on the spatial window smoothing of Schusters test, the Nilka M S6. 0 earthquake was at or near the tidal triggering area. Thus we can see from the spatio-temporal results that the Nilka M S6. 0 earthquake was obviously triggered by Earth tide.