Abstract: The distribution of condensate water in fractured rock mass can be used in many fields, such as agriculture, forestry, civil engineering and environment. In order to explore the temporal and spatial distribution of condensate water in fractured rock mass, temperature and humidity at different depths in different positions of fractures in the Jinping Mountain of Yiyang County are monitored in summer and winter. The absolute humidity and relative humidity are analyzed. The monitoring data show that the relative humidity reaches the saturation state for more than a period of time. In time, the condensate water occurs in both the summer and winter. It is more likely to produce condensate water in summer and in the night time in winter. In space, the distribution of condensate water in the fractured rocks in the study area is affected by the distribution and migration of temperature and moisture. In addition to the eastern and southern walls affected by the northwestern wind in winter, the solar radiation of the high position of the wall is so stronger that some of the vapor water moving to the low position, which makes the distribution of condensate water at the height higher than the low position. The boundary of the condensate water area in summer is around 20~50 cm deep in the hole and about 100~200 cm in winter.