Abstract: The paper aims to explore the characteristics of climate changes, for guiding agriculture production in Shihezi area, and predicting the trends of climate change in the northern area of Xinjiang. Based on the daily temperature and rainfall data and other information from 1961 to 2009 of 4 meteorological observation stations in Shihezi area, including Shihezi, Wulawusu, Mosuowan, and Fortress, the author studied the changes of wet and dry frequency. Results showed that the drought frequency in Shihezi area showed a downward trend. Severe drought occurred throughout the 1960s as well as the middle and the late of 1970s, while drought was eased after 1982. The year 1985 marked as the mutation year of drought frequency. Inter-annual wet frequency was on the rise since the year 1975. Seasonal wet frequency was consistent with the annual frequency of wet and dry, while both the downward trend of drought frequency and the increasing trend of wet in summer and autumn were obvious. As to the annual frequency of wet and dry in Shihezi area, the average frequency of drought was 26.25 times and that of the wet was 7.9 times, frequency of drought was much higher than that of wet. In the context of climate change, Shihezi area showed an obvious moist trend.