Abstract: Weifang 0.8-3.2 m earth temperature data from 1980 to 2014 was utilized, linear tendency estimation, Mann-Kendall and sliding t test statistical methods were used for analyzing the change features of deep-seated earth temperature in Weifang in recent 35 years in order to study the response of deep-seated earth temperature to the climate change in Weifang. The result showed that the change trend of 0.8-3.2 m deep-seated earth temperature was not obvious and had no mutation. All deep-seated earth temperatures showed an increase trend only in summer throughout the year. Average earth temperatures at all levels in 1980s and 2010s were higher than that in 1990s and 2000s in the aspect of interdecadal change. Deep-seated earth temperature increased with depth in winter and had better stability, which was contrary to that in summer. The best and worst stability occurred respectively in 0.8 m earth temperature layer in summer and winter. Temperature had prominent influence on deep-seated earth temperature. Quarterly average temperature and annual average temperature were positively correlated to all deep-seated earth temperatures over the same period. The correlation between temperature and all deep-seated earth temperatures was slightly decreased with depth increase because changes of deep-seated earth temperature were lagged. Precipitation had slight influence on all deep-seated earth temperatures.