In this paper

temperature series for last 500-years in the east of northern Xinjiang is reconstruct ed by means of corelation analysis between tree-ring chronologies and temperature

and tested by his torical glacial data and so on

and the stages of little Ice Age are determined by using the series. Also

the distribution of temperature and precipitation is studied

the percentage of divided values deviations are calculated

which apperance while glacier advance of retreat

from the period mean of 500 years

the glacial development and its change regular are researched. Finaly

we discuss the cold-warm change characteristics

such as period

fraqueney

amplitute

tendency etc.

and try to predict the eli marie change trend for 20 years in the future.