Abstract: Data tracking analysis is a essential daily skill for the workers at the earthquake observation stations. Especially, after implementation of the precursor observation data tracking and analysis software in the Precursor Network of China Earthquake Administration in 2013, the data tracking analysis is a necessary work for the station staff. This paper analyzes various situations in the data tracking analysis of the water temperature of Nüshan, Wuhe well, and provides references for the data tracking and analysis of the observation stations with the same observation methods in China.