Through analyzing the distortion phenomenon of body strain observation in Korla seismic station, there is marked influence of Eclipses phenomenon on body strain and auxiliary air pressure observation. The influence of Solar and Lunar Eclipses is different because of the special position of the Sun, Moon and Earth. The special position changes the tide generating force on the Earth. Proper recognition of Eclipses phenomenon influence on body strain is very significant to identify earthquake precursor anomalies.