Abstract: Turkmenistan is located in the Eurasian hinterland，which is not only one of most important parts of arid areas in central Asia，but also one of most arid areas in the world. Studying the characteristic of temperature changes and trends are good for the country’s growth and regional development. Using annual and monthly of temperature data of 7 typical meteorological stations in the Turkmenistan from 1891 to 2011，the overall trend and characteristics of climate of the region are researched with methods of linear regression，moving average，Mann-Kendall mutation test，Morlet wavelet analysis. The results indicate as follows: in nearly 121 years，the annual average temperature and mean temperatures of four seasons of the Turkmenistan have rising tendencies with several temperature fluctuation processes; particularly since the 1980s the warming effect is more significant. Among them，autumn warming is most obvious. In the 1990s the temperature breaks from down to up，mutation points is at 1994，which passes the 99% significant level. The annual average temperature of Turkmenistan has 55-，35-，and 18-year period of oscillation. 55-years period in the time scale of turbulence are across full time domain，but the oscillation of the scales of 18 years are stronger at 1930s before and 1980s after.

Key words: Turkmenistan； , temperature change； , mutational analysis； , wavelet analysis